In such type of questions, a few essential criteria for selection of a group of items are given. The candidate has to keep these conditions in mind and make the required selection as per the directions given in each question.

A team of five is to be selected from amongst five boys A, B, C, D and E and four girls P, Q, R and S. Some criteria for selecation are :
A and S have to be together.
P cannot be put with R.
D and Q cannot be together.
C and E have to be together.
R cannot be put with B.
Unless otherwise stated, these criteria are applicable to all the question below :

If A and C are members, the other members of the team cannot be :

A. B E S
B. D E S
C. E S P
D. P Q E
Answer: D . P Q E


If A and C are members, S and E have also to be selected. So, P Q E is not the correct combination.