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)