Which of the following was an immediate result of passage of the fifteenth amendment?

african american women finally gained the right to vote.

african americans were elected to all levels of government.

grandfather clauses african americans in the voting booth.

poll taxes were outlawed because they were discriminatory.

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.

What were some of the ideas that the democratic party emphasized that allowed them to appeal to most white voters?

The car market is an example of because it has few sellers who offer differentiated products. a. oligopoly b. monopoly c. monopolistic competition