You run a hospital with 100 rooms. Fixed daily cost is $2000 which includes staff salary, property charges, maintenance etc. Variable cost per room is $10 which includes cleaning, equipment rentals, utility cost etc. which is incurred only when the room is full. You charge $50 per room per day. You sold 30 rooms today, how much profit/loss did you earn.

Which of the following best explains how trade enables greater specialization among producers? a. trade diversifies the market by bringing specialized goods from around the world. b. trade requires distribution networks and adds one more step to the production process. c. trade enables producers to open up new markets for their goods and services. d. trade allows people to focus on one kind of production and trade for their other needs.