Which of the following contains the majority of the mass in the solar system?
A.Earth
B.Jupiter
C.the sun
D.the moon

the answer is C.the sun is the heaviest item in the solar system that is why all the planets revolve around the sun 

First think which has less mass in the solar system. The sun is the largest object in the solar system, so the answer is C. the sun. Hope I helped! :P