In Paragraph 2, the word "legitimate" most probably means______.

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

A．advertisement often persuades people to buy what they don't really want
B．advertisement can never really influence people's ability to decide
C．whether to buy an advertised product is up to the would-be customer
D．the effect of an advertisement on the public is difficult to determine