The members of ECOSOC are elected by the General Assembly for three-year terms. ECOSOC holds one five-week session each year alternately in New York and Geneva. Its year-round work is carried out by its subsidiary commissions and committees.ECOSOC initially had eighteen members. However, especially with the decolonization movement, new members from the developing world joined ECOSOC. As a result, the number of its members first increased to twenty-seven in 1965 and then to its current number of fifty-four in 1973. Each member has an equal voting right and, unlike the Security Council, no member has veto power.Although the Charter established ECOSOC as one of the six main organs of the UN, ECOSOC operates under the General Assembly. The UN and its bodies, including ECOSOC, have been frequently criticized for their inefficiency, duplication, and fragmentation that caused inefficient use of resources and ultimately a clear lack of organizational goals. Therefore, some critics have called for the elimination of ECOSOC; however, most of its members, and especially the developing countries, do not agree.

The correct answer is C.