Which of the following statements is correct about the 'Executive' branch of the government?

All of the above.

The correct answer is Option 4- All of the above.

Option 1- Executive is the branch of government responsible for the implementation of laws and policies adopted by the legislature.
Option 2- The executive is often involved in framing of policy. 
Option 3- The executive branch includes presidents, prime ministers, ministers and civil servants as well.
Option 4- All of the above.

The word executive means a body of persons that looks after the implementation of rules and regulations in actual practice. In the case of government also, one body may take policy decisions and decide about rules and regulations, while the other one would be in charge of implementing those rules. The organ of government that primarily looks after the function of implementation and administration is called the executive.

Executive is the branch of government responsible for the implementation of laws and policies adopted by the legislature. The executive is often involved in framing of policy. The official designations of the executive vary from country to country. Some countries have presidents, while others have chancellors. The executive branch is not just about presidents, prime ministers and ministers. It also extends to the administrative machinery (civil servants). While the heads of government and their ministers, saddled with the overall responsibility of government policy, are together known as the political executive, those responsible for day to day administration are called the permanent executive.