The answer is C because you start at the x axis and if you go 2 over the B is on top and then when you go up, you have to go up 4 spaces to reach point B
If 2/3 is equal to 1 batch of muffins than you need to multiply the fraction by 3 or 3/1 multiply the numerator by the numerator and the denominator by the denominator 2/3 *3/1 = 6/3 or simplified to... 2 cups of milk