The Sun's Position in the Milky Way Galaxy Is

The Sun's position in the Milky Way Galaxy is:

A) unknown because our view is too severely restricted by interstellar dust.
B) in the disk of the Galaxy, inside a spiral arm or segment of a spiral arm.
C) in the disk of the Galaxy, between and well away from any spiral arm.
D) in the spherical halo, somewhat above and outside the spiral arms.