It Is True About the Transition to Parenthood That

It is true about the transition to parenthood that

A) Working-class couples have less difficulty with the transition than do middle-class couples.
B) Sense of partnership with one's spouse is likely to increase.
C) Parenting satisfaction is significantly higher for married couples than for unmarried couples.
D) All of the above.
E) Only (c) and (d) above.