The institution that was the traditional center of UN diplomacy on human rights until it was replaced by the UN human rights council is known to be The UN Human Rights Commission.
The United Nations Commission on Human Rights is known to be a body that is said to be set up in the year 1946 and its function is to weave the international legal fabric that aids or guide human fundamental rights and freedoms.
Note that the main bodies of the United Nations are said to be:
Hence, The institution that was the traditional center of UN diplomacy on human rights until it was replaced by the UN human rights council is known to be option d: The UN Human Rights Commission.
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Which institution was the traditional center of UN diplomacy on human rights until it was replaced by the UN Human Rights Council?
a. The UN Economic and Social Council
b. The UN Universal Human Rights Council
c. The UN Convention on Human Rights
d. The UN Human Rights Commission