Interaction Between Newly Formed Planets and Gas and Dust Left

Multiple Choice

Interaction between newly formed planets and gas and dust left over in the stellar nebula may account for our observation of:

A) large planets in orbits near their stars, but not the large eccentricities of their orbits.
B) the large eccentricities of the orbits, but not the existence of large planets so close to their stars.
C) both the existence of large planets in near orbits and the large eccentricities of the orbits.
D) neither the existence of large planets in near orbits nor the large eccentricities of the orbits.