Venn Diagrams - Verbal and Reasoning

Directions to SolveEach of these questions given below contains three elements. These elements may or may not have some inter linkage. Each group of elements may fit into one of these diagrams at (A), (B), (C), (D) and/or (E). You have to indicate the group of elements which correctly fits into the diagrams
Q1:

Which of the following diagrams indicates the best relation between Mammal, Cow and Bat ?

A

B

C

D

ANS:B -

Explanation: Cow and Bat are different from each other but both are mammal.