How do citizens of a parliamentary democracy participate in the government?

A.
Citizens directly elect the head of government, but not the members of the national legislature.

B.
Citizens directly elect the head of government and the members of the national legislature.

C.
Citizens directly elect the members of the national legislature, but not the head of government.

D.
Citizens directly elect the head of state, but not the members of the national legislature.

B. Citizens directly elect the head of government and the members of the national legislature.