credulous credulous (Adj.) : too ready to believe things
credible (Adj.) : that can be believed or trusted
incredible (Adj.) : unbelievable
incredulous (Adj.) : not willing or not able to believe

Correct Option: C

credulous credulous (Adj.) : too ready to believe things
credible (Adj.) : that can be believed or trusted
incredible (Adj.) : unbelievable
incredulous (Adj.) : not willing or not able to believe

transitory (Adj.) : continuing for only a short time; temporary
regular (Adj.) : done or happening often
rotatory (Adj.) : of or relating to or causing rotation
repository (Adj.) : a place where something is stored in large quantities

Correct Option: B

transitory (Adj.) : continuing for only a short time; temporary
regular (Adj.) : done or happening often
rotatory (Adj.) : of or relating to or causing rotation
repository (Adj.) : a place where something is stored in large quantities

auditorium (N.) : the area of a theatre or concert hall where the audience sits
aquarium (N.) : a large glass container in which fish and other water creatures and plants are kept
gymnasium (N.) : athletic facility equipped for sports or physical training
stadium (N.) : a large sports ground surrounded by rows of seats and other buildings

Correct Option: C

auditorium (N.) : the area of a theatre or concert hall where the audience sits
aquarium (N.) : a large glass container in which fish and other water creatures and plants are kept
gymnasium (N.) : athletic facility equipped for sports or physical training
stadium (N.) : a large sports ground surrounded by rows of seats and other buildings

prototype (N.) : the first design of something from which other forms are copied or developed
sculpture (N.) : a work of art that is a solid figure or object made by carving/shaping wood, stone, clay, metal, etc.
icon (N.) : a small symbol on a computer screen that represents a program/file ; a famous person/ thing that people admire and see as a symbol of a particular idea (a way of life, etc)
photograph (N.) : a picture that is made by using a camera that has a film sensitive to light inside it

Correct Option: A

prototype (N.) : the first design of something from which other forms are copied or developed
sculpture (N.) : a work of art that is a solid figure or object made by carving/shaping wood, stone, clay, metal, etc.
icon (N.) : a small symbol on a computer screen that represents a program/file ; a famous person/ thing that people admire and see as a symbol of a particular idea (a way of life, etc)
photograph (N.) : a picture that is made by using a camera that has a film sensitive to light inside it

ligaments (N.) : a strong band of tissues in the body that connects bones and supports organs and keeps them in position
endoderm (N.) : the inner germ layer that develops into the digestive and respiratory systems
muscles (N.) : a piece of body tissue that you contract and relax in order to move a particular part of the body
fibre (N.) : the part of food that helps to keep a person healthy by keeping bowels working and moving other food quickly through the body; roughage

Correct Option: A

ligaments (N.) : a strong band of tissues in the body that connects bones and supports organs and keeps them in position
endoderm (N.) : the inner germ layer that develops into the digestive and respiratory systems
muscles (N.) : a piece of body tissue that you contract and relax in order to move a particular part of the body
fibre (N.) : the part of food that helps to keep a person healthy by keeping bowels working and moving other food quickly through the body; roughage