Aiden and Ryan are collecting clothes for a shelter. Ryan collected 1/4 as many clothes as Aiden did. If Aiden collected 12 bags of clothes, which expression below could you use to find out how many bags of clothes Ryan collected? 
 a. 12 ÷ 1/4
 b. 12 -1/4
 c. 12 + 1/4
 d. 1/4 X 12