[单选题]
An ice skater performs va0ne--v j x1ga 2dp4n g*yqto34mo sa*pirouette (a fast spin) by pulling in his outstretched arms close to his body. What happens to his angular ypa4*n dgm 34q* o2stomomentum about the axis of rotation?
A. It does not change.
B. It increases.
C. It decreases.
D. It changes, but it is impossible to tell which way.
Post time 2024-1-22 02:51:16