根据下面资料，回答
For many women choosing whether to work or not to work outside their home is a luxury; they must work to survive. Others face a hard decision. Perhaps the choice has to do with economics. One husband said, "Marge and I decided after careful consideration that for her to go back to work at this moment was an extravagance. We couldn′t afford it." With two preschool children, it soon became clear in their figuring that with babysitters, transportation, and increased taxes, rather than having more money, they might actually end up with less.
Economic factors are usually the first to be considered, but they are not the most important. The most important aspects of the decision have to do with the emotional needs of each member of the family. It is in this area that husbands and wives find themselves having to face many confusing and conflicting feelings.
There are many women who find that homemaking is boring or who feel imprisoned if they have to stay home with a young child or several children. On the other hand, there are women who think that homemaking gives them the deepest satisfaction.
From my own experience, I would like to suggest that sometimes the decision to go back to work is made in too much haste. There are few decisions that I now regret more. I wasn′t mature enough to see how much I could have gained at home. I regret my impatience to get on with my career. I wish I had allowed myself the luxury of watching the world through my little girl′s eyes.
Why did Marge and her husband think it an extravagance for Marge to go back to work?

A.Because they might pay more than they earned on the whole.
B.Because they don't have the baby sitter to help them.
C.Because Marge has to take care of their children at home.
D.Because Marge has to pay more transportation fares.