Question: A United Nations Secretary-General selection was held in 1971 to replace U Thant, three candidates received how many votes, required in the Security Council to be selected Secretary-General, one being Kurt Waldheim, he was the fourth Secretary-General of the United Nations from 1972 to 1981, and the ninth President of Austria from 1986 to 1992?
Sentence (from "Kurt Waldheim"): While he was running for president in Austria in 1985, the revelation of his service in Thessaloniki, Greece as an intelligence officer in the "Wehrmacht" during World War II raised international controversy.
Relevant evidence: No