Lauren is the owner of a bakery that earns 0 (zero) economic profit. Last year, her total revenue was $145,000, her rent was $12,000, her labor costs were $65,000, and her overhead expenses were $15,000. From this information, we know that her total explicit costs were:
a. $92,000.
b. $53,000.
c. $80,000.
d. $15,000.
e. $77,000.