Final answer:
The president fills the roles of head of state and head of government.
Step-by-step explanation:
The statement that is true about the executive role of the president of the United States is A. The president fills the roles of head of state and head of government.
As head of state, the president represents the nation symbolically and provides legitimacy to the government. As head of government, the president is responsible for setting policy agendas, crafting legislation, and responding to crises.
The president also has the power to appoint members of the executive cabinet, oversee major bureaucratic departments, serve as the civilian head of the armed forces, and set foreign and domestic policy. Meanwhile, as head of government, the President has the authority to shape and execute policy, appoint cabinet members, and act as commander-in-chief of the armed forces. The President is also influential in setting foreign and domestic policies while being a key player in responding to national and international crises.