【单选题】The last reason for their confidence in marriage is___________.
A.
They hardly took the time to know each other.
B.
They overlooked serious personality conflicts in the expectation that marriage was an automatic way to make everything work out right.
C.
Gail’s parents, after thirty-five years of marriage, were going through a bitter and painful divorce.
D.
They were sure to avoid the mistake made by many couples of marrying for the wrong reason.