In the Late 1970s, Only One-Third of Americans Thought That

In the late 1970s, only one-third of Americans thought that mothers' employment was not harmful for their preschool-aged children. Thirty years later, that proportion rose to two-thirds, illustrating

A) that women have become better mothers, able to juggle both paid work and child rearing.
B) that popular attitudes toward the appropriate divisions between men and women have gradually shifted.
C) that Americans tend to value the Protestant work ethic, encouraging everyone, despite their social status, to engage in paid labor.
D) the limits of the feminist movement, which failed to make care work a waged occupation.