Imagine a photon of light traveling the different paths in the Milky Way described in the following list. Rank the paths based on how much time the photon takes to complete each journey, from longest to shortest.

A. across the diameter of the galactic halo
B. across the diameter of the galactic disk
C. from the Sun to the center of the galaxy
D. across the diameter of the central bulge
E. through the disk from top to bottom