The Reason That Most Extrasolar Planets Are Found Close to Their

Multiple Choice

The reason that most extrasolar planets are found close to their parent stars is

A) the planets reflect more light the closer they are to the star.
B) more of the starlight is blocked by the planet when it transits the star.
C) the amount and frequency of the star's motion are both higher.
D) the closer to a star,the hotter and therefore brighter the planet is.
E) planets that are close to a star are heated up and therefore larger.