Determine the following before deciding a prescription: (a) maximize effectiveness at the least cost; (b) maximize effectiveness at a fixed cost of $10,000; (c) achieve a fixed-effectiveness level of 6,000 units of service at a fixed cost of $20,000; (d) maximize net benefits, assuming that each unit of service has a market price of $10; (e) maximize the ration of benefits to costs, assuming that each unit of service has a market price of $10.