You Decide to Take Your Younger Brother to the Park

Multiple Choice

You decide to take your younger brother to the park for a fun afternoon. You notice that one ride is basically a seat attached to an old car spring. When a person sits on it, the spring vibrates rapidly but when in a car the spring vibrates much more slowly. This is because

A) Larger masses on a spring give lower frequencies.
B) Larger masses on a spring give shorter periods.
C) Larger masses on a spring give higher frequencies.
D) Larger masses on a spring give more kinetic energy loss.