What made farmers leave their farms and migrate to the big cities to work in factories?

a. they could make more money working in factories.
b. few regulations protected the prices of crops.
c. severe long-term drought made farming difficult.
d. innovations in farming put them out of business.

The first amendment of the constitution provides all of the following freedoms except oa) religion. ob) right to bear arms. oc) speech. od) press.

Which nation most to bail out greece’s failing economy?

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.