The choices below describe four hypothetical planets. Which one would you expect to have the hottest interior? (Assume the planets orbit a star just like the Sun and that they are all the same age as the planets in our solar system.)a. Size: same as Venus. Distance from Sun: same as Mars. Rotation rate: once every 25 hours.
b. Size: same as Mars. Distance from Sun: same as Earth. Rotation rate: once every 18 hours.
c. Size: twice as big as Earth. Distance from Sun: same as Mercury. Rotation rate: once every 6 months.
d. Size: same as the Moon. Distance from Sun: same as Mars. Rotation rate: once every 10 days.