Miss Li brought some money to buy sporting goods, just enough to buy 25 footballs. In fact, Miss Li only bought 20 footballs.

So 1 the price of a basketball = 60 ÷ 30 = the price of two footballs,

And because after buying 25 basketballs, there is still money left to buy 30-25=5 basketballs.

So you can buy 2×5= 10 football.

A: The rest of the money can buy 10 football.

So choose: C.