d. Student → b. Books → a. Study → c. Examination → e. Result

Correct Option: B

Meaningful order:
d. Student → b. Books → a. Study → c. Examination → e. Result

e. Grass → c. Grass hopper → a. Frog → d. Snake → b. Eagle

Correct Option: C

Grasshopper eats grass. Frog eats grasshopper. Snake eats frog and finally eagle eats snake. Thus,
e. Grass → c. Grass hopper → a. Frog → d. Snake → b. Eagle

b. Forehead → d. Ears → f. Chin → a. Chest → c.Stomach → e. Legs

Correct Option: B

Meaningful order of words.
b. Forehead → d. Ears → f. Chin → a. Chest → c.Stomach → e. Legs

(a) Amoeba → (c) Worm → (b) Oyster → (d) Cow

Correct Option: A

Meaningful order of words:
(a) Amoeba → (c) Worm → (b) Oyster → (d) Cow

e. Lt. General → d. Brigadier → c. Colonel → a. Major → b. Captain

Correct Option: A

Descending Order
e. Lt. General → d. Brigadier → c. Colonel → a. Major → b. Captain