The correct answer is A. overthrow the Communist leadership
The government at the time was Communist (Marxist-Leninist), so C can't be right. Also the white settlers were already driven out in the war that ended the previous year.
germany thought it was the jews fault for the great depression and ppl believed it since they were so desperate that lead to the holocaust. Hitler broke of the secret deals with another dictator which lead to one of the reasons of WW2