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. Casey can buy a maximum of ______ pounds of fish or a maximum of ______ pounds of shrimp.

Select one:

a. 30; 50

b. 50; 30

c. 15; 30

d. 30; 15