The correct answer is (a) President.
In a presidential system of government, the president is the head of state and head of government. The president is elected by the people and has the power to veto laws passed by the legislature, appoint judges and other officials, and command the armed forces. The president is also responsible for carrying out the laws of the country.
The cabinet is a group of advisors to the president. The cabinet is appointed by the president and confirmed by the legislature. The cabinet helps the president make decisions and carry out the laws of the country.
The legislature is a body of elected officials who make laws. The legislature is responsible for passing laws, approving the budget, and overseeing the executive branch.
The upper house is one of the two houses of a bicameral legislature. The upper house is usually smaller than the lower house and has fewer powers. The upper house is often used to represent the interests of the states or provinces.
In a presidential system of government, the president is the most powerful official. The president has the power to veto laws passed by the legislature, appoint judges and other officials, and command the armed forces. The president is also responsible for carrying out the laws of the country. The cabinet, legislature, and upper house are all important parts of the government, but they do not have as much power as the president.