How Many Years Does It Take the Sun to Complete

Multiple Choice

How many years does it take the Sun to complete one orbit around the Milky Way? Note that the Sun is traveling at approximately 220 km/s and is 8 kpc from the center of the Milky Way.

A) 180 thousand years
B) 7 million years
C) 35 million years
D) 230 million years
E) 620 million years