Prior to World War II, Many School Districts Banned Women

Prior to World War II, many school districts banned women from teaching if they were married. But in the years following the war, school districts eliminated their policies restricting the employment of married women teachers. What would explain this reversal of policy?

A) School boards came to believe that married women were better teachers than single women.
B) The government enacted antidiscrimination legislation.
C) The baby boom following the war necessitated a greater need for teachers due to the increased number of students.
D) School boards took the view that "spinster" school teachers were highly likely to be lesbians.