Astronomy help please?!??!?!?!?

1.b, 2.a, 3 c, and I think 4 is e. To find the answer to 4 to make sure I am right, find out how long it takes Jupiter to orbit our sun. If the orbit is in hundred of years then I am right. The rest you should be able to figure out yourself if I am wrong. Heck I am not doing all this for you. Any way hope I helped.