Felix was given $125 for his birthday from his grandmother. He plans to put this money toward the purchase of a $250 skateboard. The remainder of the money he plans to earn mowing lawns for the rate of $35 each.

What is the least number of lawns Felix will have to mow in order to have enough to buy the skateboard?

A3 lawns <--not this one thats all i know

B4 lawns

C7 lawns

D8 lawns