A muffin recipe, which yields 12 muffins, calls for 2/3 cup of milk for every 1 3/4 cups of flour. The same recipe calls for 1/4 cup of coconut for every 3/4 cup of chopped apple. If all ingredients in this recipe are changed proportionately, you should put _____ coconut in a mix that contains 1 2/3 cups milk.
A) 1 1/4 cups
B) 3/4 cup
C) 5/18 cup
D) 5/8 cup