During the 1920s, why did so many people heavily invest in the stock market? Select all that apply. a. Stocks were one way to make more money.
b. Banks were not offering very high interest rates.
c. People had a lot of extra money they didn't need.
d. Profiting companies were worth investing in.

A

Explanation:

tocks were one way to make more money. People had a lot of extra money they didn't need. ... Investors sold off vast amounts of their stocks.

a historian who compares the expansion of political systems to the expansion of economic systems to the expansion of economic systems is organizing history by theme.

hope this : d

sorry i really dont know