What was one downside to this period of rapid economic growth? a. Man

What was one downside to this period of rapid economic growth?

a. Many traditional industries, such as agriculture, went into a period of decline.
b. Industry was frequently interrupted by crippling labor strikes.
c. The overall standard of living of Americans declined at this time.
d. Unemployment rates skyrocketed due to the advent of mass production.
e. It wsa difficult to differentiate between urban culture and rural American values.

ANSWER
A