According to freud, what is one's unconscious motivation behind forgetting something?

Which individual below advocated that democracy would give way to socialism and capitalism would change into communism?

Which of the following was a key accomplishment of the people of songhai? a. they had a strong military and became the largest empire in west africa. b. they established a center of islamic scholarship. c. they worked with iron and prospered from the gold-salt trade. d. they dominated in the trade of ivory, enslaved people, and animal skins.

Why is it economically necessary for the east germans to build berlin wall