Jeff is baking a cake. the recipe says that he has to mix 32 grams of vanilla powder to the flour. jeff knows that 1 cup of that particular vanilla powder has a mass of 128 grams. he added two over three of a cup of vanilla powder to the flour. should jeff add more vanilla powder to make the exact recipe, or did he go over and by what amount?
a-he needs to add one over four of a cup
b-he went over by five over 12 of a cup
c-he went over by one over four of a cup
d-he needs to add five over 12 of a cup