Which Olympics are called the ‘high level upsets’ Olympics________________________?

A. 1968 Mexico Olympics (7000 ft above sea level site of the Game)
B. 1972 Munich Olympics
C. 1976 Montreal Olympics
D. 1984 Los Angeles Olympics

The correct answer to the question: "Which Olympics are called the ‘high level upsets’ Olympics________________________?" is "1968 Mexico Olympics (7000 ft above sea level site of the Game)".