Marco is making blueberry muffins. The ratio between flour and blueberries for the recipe being used is shown in the table below.

Cups of
Flour Cups of
Blueberries

How many cups of blueberries will Marco need if he has 2 cups of flour to use?

A. 1/3 cup

B. 2/3 cup

C. 1 1/2 cups

D. 6 cups