Headquarters of the UN industrial Development Organization is based in__________?

Headquarters of the UN industrial Development Organization is based in__________?A. Vienna
B. Geneva
C. Paris
D. Bern

The United Nations Industrial Development Organization (UNIDO) (French/Spanish acronym: ONUDI) is a specialized agency of the United Nations that assists countries in economic and industrial development. It is headquartered at the UN Office in Vienna, Austria, with a permanent presence in over 60 countries. As of April 2019, UNIDO comprises 170 member states, which together set the organization’s policies, programs, and principles through the biannual General Conference.