For which achievement is Edmund Hillary best known?
A. Formulating the evolutionary theory
B. Creating flu vaccines
C. Reaching the summit of Mount Everest
D. Swimming across the English channel
In 1953, Edmund Hillary and Nepalese Sherpa mountaineer Tenzing Norgay became the first climbers to reach the summit of Mount Everest.
How did others answer?
A. 5% B. 7% C. 71% D. 17%