【单选题】

Questions 18～21 are based on the following talk. You now have 20 seconds to read Questions 18～21. A、working-class wife will, on the whole, obey her husband ______ .

A、supporting he is not lazy and selfish in the family
B、only if he is considerate and helpful to her
C、unless he keeps her well informed of the world
D、since he is the person who earns most of the family money