The article in Politico suggests a couple of possible reasons for the celebrity involvement in the 2012 election like for one Barack Obama's star power and liberal appeal plus because of the social media boom which makes the communication much, much easier. Finally this kind of communication with the stars also works well.
Manufacturing was the most surprising at the time . Rosie the Riveter was made famous as a lovely woman in coveralls helping build airplanes for the war effort .
The answer is A, C & D make no sense. B is not wrong, but A is the better answer.
Many women acted as nurses for the wounded in WWI front lines. Most were not allowed to combat, but they could fill roles in other occupations such as the U.S. Army's Signal Corps. and as marine and naval yeomen.
