What is the main idea of this expect from an article in the U. S. Constitution? A. The Constitution establishes the executive branch as the most powerful branch of government.

B. The Constitution creates the office of the president and establishes rules for how the president is to be elected.

C. The Constitution gives the president the power to select senators and representatives to serve in Congress.

D. The Constitution creates Congress and establishes rules for how senators and representatives are to be elected.​