单项选择题

We can infer from the passage that in the beginning the newspaper editors were______Gallup's system.
A) doubtful of C) displeased with
B) enthusiastic about D) indignant at

A.We can infer from the passage that in the beginning the newspaper editors were______Gallup's system.
B.doubtful of
C.enthusiastic about
D.displeased with
E.indignant at