Placing the Hubble Space Telescope in Space Gives Better Resolution

Placing the Hubble Space Telescope in space gives better resolution because it is

A) above the atmosphere which distorts images.
B) in circular orbit where there is no spherical aberration.
C) in elliptical orbit where there is no spherical aberration.
D) larger than the largest ground-based telescopes.
E) free from gravity-produced optical flaws.