C. (3 points) Fill in her marginal revenue at each output level d. (3 points) Based only on the information in the table, what is her profit maximizing output level Quantity Total Costs Marginal Costs Total Marginal (TC) (MC) Revenue (TR) Revenue (MR) 200 5 275 10 375 15 500 20 650 4. (6 points). Michael started a business that makes and sells custom made sweaters for dogs. When he opened up his shop, he paid a one-time licensing fee of $2,500. His only cash costs are the $1,000 he spends per month on rent (including utilities) and $2,500 he spends per month on the materials that he needs to make the sweaters. His total revenue in his first month was $4,500. His sister Carly advises him that he is losing money and should shut down. a. (3 points) As an economics guru, what would you advise him to do