问题详情

According to the passage，some couples may eventually choose to have children because ()．
A．they find it hard to resist the carrot-and-stick approach of their parents
B．they have learn from other parents about the joys of having children
C．they feel more and more lonely ad they grow older
D．they have found it irrational to remain childless请帮忙给出正确答案和分析，谢谢！