Casey earns $150 a week and consumes only fish and shrimp. The price of fish is $3 a pound and the price of shrimp is $5 a pound. Suppose the price of fish decreased to $1.50 a pound, and the price of shrimp remains $5 a pound. At Casey’s original income of $150 per week, Casey can now buy a maximum of _ pounds fish or a maximum of _ pounds shrimp.
A.10; 30
B.100; 30
C.30; 50
D.30; 100
正确答案：100; 30
