According to Johansson, the signals influencing women's individual decisions are ______.

A．Women differ in their attitudes toward the multiple roles society assigns to them.
B．Women's multiple roles can be both positive and negative and are decided in social and cultural context.
C．Whether to have a job or a family to look after should be a woman's personal choice.
D．The debate about women's multiple roles could be rendered obsolete by changes in societal expectations.

A．Americans are fond of soybeans
B．Every mouthful of soybean has been changed by genetic engineering
C．America is on the verge of a second green revolution
D．Soybean is treated as an additive to scores of foods