Explain THREE steps taken by the people of the French Caribbean to become fully independent or ‘French’ in the 20th century

How did slavery end in the united statesa. it ended with the emancipation proclamationb. it ended when the union won the civil warc. it ended with the fifteenth amendmentd. it ended with the 13th amendment

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.

When using the scientific method, what should be the first step? a.) gathering information on the problem. b.) stating the problem. c.) analyzing and interpreting data.