单项选择题

"Congratulations, Mr. Jones, it’s a girl."
Fatherhood is going to have a different meaning and bring forth a different response from every man who hears these words. Some feel pride when they receive the news, while others worry, wondering whether they will be good fathers. Although there are some men who like children and may have had considerable experience with them, others do not particularly care for children and spend little time with them. Many fathers and mothers have been planning and looking forward to children for some time. For other couples, pregnancy was an accident that both husband and wife have accepted willingly or unwillingly.
Whatever the reaction to the birth of a child, it is obvious that the shift from the role of husband to that of father is a difficult task. Yet, unfortunately, few attempts have been made to educate fathers in this reconciliation (协调) process. Although numerous books have been written about American mothers, only recently has literature focused on the role of fathers.
It is argued by some writers that the change to the father’s role, although difficult, is not nearly as great as the change the wife must take to the mother’s role. The mother’s role seems to require a complete transformation in daily routine and highly innovative adaptation. On the other hand, the father’s role is less demanding and immediate. However, even though we mentioned the fact that growing numbers of women are working outside the home, the father is still thought by many as the breadwinner in the household.
The author’s purpose in writing this passage is to