Arnold buys 3 35 pounds of green grapes for $1.85 per pound. He buys 3 35 pounds of red grapes for $2.30 per pound. Which expression can be used to determine the total cost, in dollars, of the grapes Arnold buys?

A)3.6(1.85 + 2.30)B)3.6 • 1.85 • 2.30C)(3.6 + 3.6)(1.85 + 2.30)D)(3.6 • 3.6) + (1.85 • 2.30)