You decide to quit your $90,000 per year job as a college professor and open a coffeeshop. At the end of the first year of running the coffeeshop, you have earned $110,000. You also spent $25,000 for rent and $50,000 on ingredients and packaging. Your economic profit in the first year operating the coffeeshop is: a $35,000 b $20,000 c $75,000 d -$55,000