单项选择题

Parents have to do much less housework for their children today than they used to do.

A.现今,做父母的让其子女们操持家务的比以往少得多了。
B.现今,做父母的为其子女们操持家务比以往少得多了。
C.现今,父母做的家务事比子女们少得多了。
D.现今,父母做的家务事比子女们多得多了。