[单项选择]

Whenever Catherine Brown, a 37-year-old journalist, and her friends, professionals in their 30s and early 40s, meet at a London café, their favorite topic of conversation is relationships: men’s reluctance to commit, women’s independence, and when to have children—or, increasingly, whether to have them at all. "With the years passing my chances of having a child go down, but I won’t marry anyone just to have a child," says Brown. To people like Brown, babies are great—if the timing is right. But they’re certainly not essential.
In much of the world, having kids is no longer a given. "Never before has childlessness been an understandable decision for women and men in so many societies," says Frank Hakim at the London School of Economics. Young people are extending their child-free adulthood by postponing children until they are well into their 30s, or even 40s and beyond.
A growing share are ending up w
A. totally wise
B. a huge problem
C. a rational choice
D. absolutely necessary

Whenever Catherine Brown, a 37-year-old journalist, and her friends, professionals in their 30s and early 40s, meet at a London café, their favorite topic of conversation is relationships: men’s reluctance to commit, women’s independence, and when to have children—or, increasingly, whether to have them at all. "With the years passing my chances of having a child go down, but I won’t marry anyone just to have a child," says Brown. To people like Brown, babies are great—if the timing is right. But they’re certainly not essential.
In much of the world, having kids is no longer a given. "Never before has childlessness been an understandable decision for women and men in so many societies," says Frank Hakim at the London School of Economics. Young people are extending their child-free adulthood by postponing children until they are well into their 30s, or even 40s and beyond.
A growing share are ending up w
A. a hard commitment
B. helpful to their career
C. essential for happiness
D. an understandable decision