Since the couple would not ________ their differences, they decided to get a divorce.
句意：由于这对夫妇难以调和彼此的分歧，因此他们决定离 婚。reconcile调停，使一致。resign辞职，辞去。comply遵守，服从。coincide（意见上）一致，符合。由于coincide为不及物动词，后不能直接跟宾语，故答案选D。