Astronauts Orbiting Earth in the Space Shuttle Feel Weightless in Space

Multiple Choice

Astronauts orbiting Earth in the space shuttle feel weightless in space because:

A) they are farther away from the Earth
B) they eat less food while in orbit
C) the gravitational pull of the Moon counteracts the Earth's gravitational pull
D) they are in constant free fall around the Earth
E) they are in space where there is no gravity