Write 2 eggs is to 3 cups of flour as 12 eggs is to 18 cups of flour as a proportion.

a. 2 eggs / 3 cups of flour = 12 eggs / 18 cups of flour.
b. 3 eggs / 2 cups of flour = 12 eggs / 18 cups of flour.
c. 2 eggs / 3 cups of flour = 18 cups of flour / 12 eggs.
d. 3 eggs / 12 cups of flour = 32 eggs / 18 cups of flour.