Satellites are held in orbit by the force of our planet’s gravitational attraction. A satellite in a small-radius orbit moves at a higher speed than a satellite in an orbit of large radius. Based on this information, what you can conclude about the earth’s gravitational attraction for the satellite? （ ）
选项：

A:It increases with increasing distance from the earth.
B:It is the same at all distances from the earth.
C:It decreases with increasing distance from the earth.
D:This information by itself isn’t enough to answer the question.