Gary buys a 3 1/2 pound bag of cat food every 3 weeks. gary feeds his cat the same amount of food each day. which expression can gary use to determine the number of pounds of cat food his cat eats each year? ( 1 year=52 weeks )

a. 7/2 times 52/3
b. 7/2 times 3/52
c. 3 (1/2 times 3/52)
d. 3 (1/2 times 52/3)