The Moon Raises Tidal Bulges on Earth and as a Consequence

Multiple Choice

The Moon raises tidal bulges on Earth and as a consequence is being pulled gradually away from Earth. Phobos raises tidal bulges on Mars and as a consequence is being pulled gradually toward Mars. Why this difference?

A) Phobos orbits Mars with a shorter period than Mars itself rotates.
B) Phobos is in a polar orbit rather than an equatorial orbit.
C) Phobos is in a retrograde orbit.
D) Phobos is in a highly eccentric orbit.