One of the Problems That Led to the Discovery of Atmospheric

Multiple Choice

One of the problems that led to the discovery of atmospheric pressure was:

A) Why Gasparo Berti's experiment worked in Rome but not in Florence.
B) Why it was impossible to siphon mercury from one container to another.
C) Why suction pumps failed to work on mountain tops.
D) Why the water in Gasparo Berti's glass pipe always descended to the same level.
E) Why water boils at a lower temperature on mountaintops than it does at sea level.