Rasheed has two and three-fourths cups of berries. He uses four-sixths of a cup of berries to make a milkshake. He then uses one-half of a cup of berries. After he makes his milkshake and muffins, how many cups of berries will Rasheed have left?
A. four-eighteenths cups
B. sixteen twenty-fourths cups
C. one and five twenty-fourths cups
D. one and seven-twelfths cups