The word "strand" (the first sentence in the second paragraph) is closest in meaning to the word "______".

A．that women should assume their proper roles as housewives
B．that women should commit no sin against their husbands and the society
C．from the premise that women are the weaker sex to be protected
D．that government policies should be made favorable to women's liberation

A．is often quoted in the work of other scientists
B．is careful not to make a value judgement about the use of data
C．is applauded by all distinguished experimentalists
D．generates a novel and well-founded generalization