Maybe they think that they will be able to change your mind if y

Maybe they think that they will be able to change your mind if you feel guilty （ ）.
A、enough
B、abundant
C、satisfying
D、proper
【正确答案】：A
【题目解析】：本题考查形容词辨析。enough是“足够的”；abundant是“丰富的”；satisfying是“令人满意的”；proper是“适当的”。句意：也许他们认为如果你感到足够地愧疚，他们将能够改变你的想法。故选A。