Earth Moves About 30 Km/s Relative to the Sun

Multiple Choice

Earth moves about 30 km/s relative to the Sun.When you jump upward in front of a wall,the wall doesn't slam into you at 30 km/s because the wall

A) has too little gravity to influence you.
B) moves in the opposite direction to you.
C) and you move at the same horizontal speed,before,during,and after your jump.
D) has negligible inertia compared with the Sun.