Which statement explains why the neutrality acts changed between 1935 and 1939?
a. between 1935 and 1939, the u. s. sales of war materials decreased.
b. between 1935 and 1939, war broke out in europe and asia.
c. between 1935 and 1939, u. s. foreign policy became more isolationist.
d. between 1935 and 1939, the united states joined the allied powers.

The service industry in the united states grew in the late 1800s. what was one effect of that growth? the number of people with jobs in factories as unskilled workers decreased. the number of people with jobs in factories as unskilled workers increased. the middle class grew as people took jobs as clerks, lawyers, and teachers. the middle class shrank as people left jobs as clerks, lawyers, and teachers.