The correct answer is B. The executive branch is more independent in Canada than in the United States.
In Canada, the Prime Minister, who is the head of government, is chosen via general elections but is also the leader of the majority party in the legislature, which may suggest a tighter integration of the executive and legislative branches. In contrast, in the United States, the President is both the head of state and head of government and is elected independently of the legislative branch, indicating a distinct separation of powers.