A pharmacist had 3 ounces of hydromorphone hydrochloride. he used the following: 1/8 ounce ¼ ounce 1½ ounces how many ounces of hydromorphone hydrochloride were left?

A) 1.125 ounces
B) 1.375 ounces
C) 0.625 ounces
D) 0.875 ounces