Correct Option: C

The Secretary-General of the United Nations, abbreviated UNSYG, is the head of the United Nations Secretariat, one of the principal organs of the United Nations. The Secretary-General also acts as the de facto spokesperson and leader of the United Nations. None so far has held office for more than two terms. The United Nations Charter provides for the Secretary-General to be appointed by the General Assembly upon the recommendation of the Security Council. As a result, the selection is subject to the veto of any of the five permanent Members of the Security Council. While the appointment and approval process of the Secretary-General is outlined in the UN Charter, specific guidelines have emerged regarding the term limits and selection process.