If You, as Sole Proprietor of a Corner Grocery Store

If you, as sole proprietor of a corner grocery store, work 15 hours per day, six days a week but do not take a money wage payment, then the cost to your firm of your labor is your

A) opportunity cost and is considered an explicit cost
B) opportunity cost and is considered an accounting cost
C) opportunity cost and is considered an implicit cost
D) explicit cost and is considered an opportunity cost
E) implicit cost even though it is considered an explicit cost