The word "legitimate" (Line 2, Para. 2) most probably means______.

A．if the martial life is imperfect.
B．if it leads to a more worthwhile life for the persons
C．if the couple later get married again and find real love
D．if the couple live far away from each other

A．the importance of self-restraint on the parts of the husband and wife
B．the sacrifice man should make to contribute to housework
C．the tolerance of her husband's misbehavior on the part of the wife
D．the difference in value put on marriage between the husband and wife