In the event he requires an appendectomy, David's demand for hospital accommodations is as shown in the diagram below. Assume the marginal cost of providing a hospital room is $150 per day. a. Suppose David's health insurance plan only covers the cost of hospital stays that exceed $1,000 per illness. How many days will David choose to stay in the hospital? day(s). b. Suppose instead that David's health insurance plan fully covers the cost of all hospital stays. How many days will David choose to stay in the hospital? day(s). This choice (Click to select) fails passes the cost-benefit test because the marginal benefit of David's last day in the hospital is (Click to select) less than greaterthan equal to its marginal cost