Write an inequality for the sentence
Then solve.
fifteen less than a number is at most 6

A. x+15<(with a line under it)6;x<(with a line under it)-9**
B. x-15< (with a line under it)6;x>(with a line under it) 21
C.x-15 >(with a line under it)6;>(with a line under it)21
D.x-15>(with a line under it)6;x>(with a line under it)16