Which of the Following Best Describes the Movement of a Glacier

Multiple Choice

Which of the following best describes the movement of a glacier?

A) A glacier typically moves rapidly, on the order of several kilometers in a season
B) A glacier typically moves slowly, on the order of a few tens of meters per year, although faster movement, called surging, can occur in alpine glaciers
C) Glaciers never move up an incline, but always down a land slope
D) Glaciers move during periods of climate cooling, such as the ice age and are stationary during warmer periods