Assume That the Cities Lie on the Same North-South Line $1.5 \pi$

Multiple Choice

Assume that the cities lie on the same north-south line and that the radius of the earth is 6400 km.
-Suppose the tip of the minute hand of a clock is 9 inches from the center of the clock. Determine the distance traveled by the tip of the minute hand in 10 minutes. Give an exact answer.

A) $1.5 \pi$ in.
B) $9 \pi$ in.
C) $6 \pi$ in.
D) $3 \pi$ in.