What does churchill have the authority to do

Churchill was the Prime Minister of the United Kingdom from 1940 to 1945 and from 1951 to 1955.  He lead Britain to victory the second World War.   The Prime Minister duties include assuming responsibility for all the decisions and policies of the British government, appointing government officials, organizing and overseeing government departments and agencies, serving as head of the Cabinet, acting as a liaison with the monarch, participating in the House of commons.

b is the answer for this question.

the answer is: the start of world war i, and russia’s hopes of benefiting from it

during world war i russian joined due to in their current crisis they were being supported by france and the war was already declared to them by germany, they needed to maintain their political goal and leadership role in the balkans, and is the same feeling that this excerpt evoke the eager of maintain the land value.