What does the example in Paragraph 3 suggest
A) Wives tend to work. C) Working wives are preferable.
B) Housewives are out of date. D) Women are free from housework.

A．To take her to Paris.
B．To show her what the interesting places are.
C．To serve as her guide.
D．To introduce her to his families.

A．Construction materials could easily be found.
B．There were no caves where they worked.
C．They were tired of living in caves.
D．There were fewer caves available.