Heather, Who Has Just Become a Mother for the First

Heather, who has just become a mother for the first time, has a high paying job. Based on the findings of studies of mothers and employment, she probably

A) will decide not to return to work
B) will return to work later than women who earn less than she does
C) will celebrate her 25^th birthday soon
D) worked during her pregnancy, very likely during the month before she gave birth