(15). If Q and R are among the birds that are assigned to the cages, then it must be true that
(A) H is exhibited
(B) K is exhibited
(C) N is exhibited
(D) J is assigned to one of the cages
(E) T is assigned to one of the cages
(16). If Q and T are among the birds assigned to the cages, which one of the following is a pair of birds that must be exhibited?
(A) H and J
(B) H and K
(C) M and N
(D) R and W
(E) S and W
(17). Which one of the following CANNOT be true?
(A) One pair of parakeets are the only birds exhibited together.
(B) One pair of goldfinches and one pair of lovebirds are exhibited together.
(C) One pair of goldfinches and one pair of parakeets are exhibited together.
(D) One pair of lovebirds and one pair of parakeets are exhibited together.
(E) Two pairs of parakeets are exhibited together.
(18). If S is one of the birds exhibited, it must be true that
(A) H is exhibited
(B) M is exhibited
(C) K is assigned to a cage
(D) N is assigned to a cage
(E) R is assigned to a cage
