Consider a Star with 2 Planets

Multiple Choice

Consider a star with 2 planets. The mass of planet A is the same as the mass of planet B. The orbit of Planet A is on average, closer to the star than the orbit of Planet B. Which of the following statements is true?

A) Planet A is on average, moving faster than Planet B.
B) Planet A is on average, moving slower than Planet B.
C) The relative orbital speeds depend on the masses of the planets.
D) Planet A moves with the same speed as Planet B.