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 including P at least three members are girls, the members of the team other then P are :

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


P and R cannot be together. So, R S A D is wrong.
S and A have to be together. So, Q S B D and Q S C E are incorrect.