Who promoted the idea that there's a conflict between the conscious and unconscious mind? a. ernest hemingway b. werner heisenberg c. edgar degas d. sigmund freud

That was D. Sigmund Freud.
He believed that there is a huge discrepancy between what's conscious (things we are aware of) and what's unconscious (things that we aren't aware of). Sometimes, the unconscious surfaces through our dreams mostly, according to Freud's theories.

from the conditions of the working class in england by friedrich engels,the main idea is :

manchester's leaders hoped to oppress its working class to benefit factory owners.

Not sure this is a hard one huh