Assume that Dusty has $30 in income, the price of a loaf of bread is $1.50, and the price of a jar of peanut butter is $3. Suppose that at the original income of $30, the price of a loaf of bread increased to $3 and the price of a jar of peanut butter decreased to $2. Dusty can buy a maximum of _ loaves of bread or a maximum of _ jars of peanut butter.
A.10; 15
B.15; 20
C.20; 15
D.15; 10
正确答案：10; 15
