What Are the Two Main Differences Between Extrasolar Planetary Systems

Multiple Choice

What are the two main differences between extrasolar planetary systems discovered to date and our Solar System?

A) extrasolar planets tend to be more massive and dense than Jupiter
B) extrasolar planet orbits tend to be more eccentric and inclined than in our Solar System
C) extrasolar planet orbits tend to be closer and more eccentric than in our Solar System
D) extrasolar planet orbits tend to be closer and more circular than in our Solar System
E) extrasolar planets tend to be bigger and denser than Jupiter