From above the given question , we know that
All boys are males.
Some boys and some males may be football players.
Some football players may not be males and vice versa is also possible.

Correct Option: A

From above the given question , we know that
All boys are males.
Some boys and some males may be football players.
Some football players may not be males and vice versa is also possible.
From above it is clear that option ( A ) represents the best relationship between males, boys and football players .

On the basis of above given question , we can say that
some of the participants were vegetarians, some others were non-vegetarians. Another group was of non - vegetarians not eating meat and yet another group of people eating meat but not fish.

Correct Option: B

On the basis of above given question , we can say that
some of the participants were vegetarians, some others were non-vegetarians. Another group was of non - vegetarians not eating meat and yet another group of people eating meat but not fish. It means that vegetarians are different from non - vegetarians .
From above it is clear that option ( B ) will be required answer. As shown in given venn - diagram .

As we know that ,
Sharks belong to class Pisces. Whale is a mammal and Turtle belongs to class reptilian.

Correct Option: C

As we know that ,
Sharks belong to class Pisces. Whale is a mammal and Turtle belongs to class reptilian.
From above it is clear that Sharks, Whales and Turtles belong to different classes.
Hence , Option ( C ) is required answer .

On the basis of above given question , we get
Judge is different from both the thief and criminal. The thief comes under the class criminal.

Correct Option: C

On the basis of above given question , we get
Judge is different from both the thief and criminal. The thief comes under the class criminal.
From above it is clear that 'Judge' belongs to other class but 'Thief' and 'Criminal' belong to same classes .It represents a relationship in given figure .
Therefore , Option ( C ) is correct answer .

According to question ,
we get the best relationship between milk, goat, cow and hen .As shown in given figure .

Correct Option: C

According to question ,
Goat is different from cow . But both give milk . So, we get the best relationship between milk, goat, cow and hen .As shown in given figure .
Therefore , required answer is option ( C ).