The correct answer is: C. nine years.
The International Court of Justice (ICJ) is the principal judicial organ of the United Nations. It was established in 1945 by the Charter of the United Nations and began work in 1946. The Court settles legal disputes between States and gives advisory opinions on legal questions referred to it by authorized United Nations organs and specialized agencies.
The Court is composed of 15 judges, who are elected by the General Assembly and the Security Council of the United Nations for nine-year terms. No two judges may be nationals of the same State. The judges are elected in such a way that the representation of the principal legal systems of the world is assured.
The Court is divided into two chambers: the full Court and the Chambers. The full Court hears all cases unless the parties agree to refer the case to a Chamber. The Chambers are composed of three or five judges and are used to hear cases that are not of major importance or that can be resolved more quickly and efficiently by a smaller number of judges.
The Court is located in The Hague, Netherlands.
The term of office of a Judge of the International Court of Justice is nine years. Judges are eligible for re-election.