Data Sufficiency

Tom started a company with 5 of his friends from the college. They made a software and sold it. Tom sold 15, and his friends each sold at least 1. Did Tom sell more than at least 3 of his friends?

1) The median number of software sold by 5 friends is 14.
2) The average number of software sold by 5 friends is 9.

The OA is D.

I am confused here. Can any expert clarify this question for me? I don't know how to solve it. Thanks in advanced.