Roy uses 1/4 cup for each muffin
so if Roy makes 2 muffins he will need - ![\frac{1}{4}+ \frac{1}{4} = \frac{2}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B4%7D%2B%20%5Cfrac%7B1%7D%7B4%7D%20%3D%20%5Cfrac%7B2%7D%7B4%7D%20%20%20%20)
so to make 2 muffins he needs 2/4 cup
then to make 3 muffins he needs an additional 1/4 cup
therefore for each additional muffin he needs an additional 1/4 cup
so the list for the amount of cups he needes depending on the muffins hes making is as follows
1/4 , 2/4. 3/4 , 4/4, 5/4
so its a pattern with a difference of 1/4 cups for each muffin
the correct answer that gives this pattern is
B.1/4,2/4,3/4,4/4,5/4