Kepler's Third Law States That

Kepler's third law states that:

A) the orbital period of a planet is inversely proportional to the square of its mean distance from the Sun.
B) the cube of the orbital period is directly proportional to the square of its mean distance from the Sun.
C) the square of the orbital period is directly proportional to the cube of its mean distance from the Sun.
D) the orbital period of a planet is directly proportional to its mean distance from the Sun.