40 POINTS HELP FAST Chen is baking cookies and a cake for a party. He needs 3 1/5 cups of flour to make the cookies and 3 2/3 cups of flour to make the cake. Which is the best estimate of the number of cups of flour that Chen needs to bake both recipes?
A. 6 cups of flour
B.7 cups of flour
C.8 cups of flour
D.9 cups of flour