Why Did More American Women Hold Paying Jobs in Mid-2009

Why did more American women hold paying jobs in mid-2009 than men?

A) A significant proportion of American men were serving with the armed forces in Iraq and Afghanistan.
B) The boom in the service and retail sectors of the economy at the time had significantly pushed employment among women.
C) The much larger proportion of women among immigrants tipped the balance.
D) Men were more likely to lose their jobs during the great recession.
E) Employers were increasingly discriminating against white men.