PLEASE HELP!! A busy small business owner is considering purchasing groceries through a premium home delivery service because of its convenience. The service provides the best groceries and costs significantly more than buying groceries in the store, but home delivery is an attractive feature. Examine the opportunity costs and trade-offs of the small business owner choosing to buy groceries through this premium home delivery service. Compare your findings with the opportunity costs and trade-offs if the small business owner were to choose buying groceries in the store instead.

Richardson hired j. c. flood company, a plumbing contractor, to correct a stoppage in the sewer line of her house. the plumbing company's 'snake' device, used to clear the line leading to the main sewer, became caught in the underground line. to release it, the company excavated a portion of the sewer line in richardson's backyard. in the process, the company discovered numerous leaks in a rusty, defective water pipe that ran parallel with the sewer line. to meet public regulations, the water pipe, of a type no longer approved for such service, had to be replaced either then or later, when the yard would have to be excavated again. the plumbing company proceeded to repair the water pipe. though richardson inspected the company's work daily and did not express any objection to the extra work involved in replacing the water pipe, she refused to pay any part of the total bill after the company completed the entire operation. j. c. flood company then sued richardson for the costs of labor and material it had furnished. (c) for what, if anything, should richardson be liable? explain."