Read the following essay question and introduction then choose which is a proper conclusion. Introduction: Alternative medicine is not new. It is accepted that it pre-dates conventional medicine and it is still used by many people all over the world. I am unconvinced that it is dangerous, and feel that both alternative and conventional medicine can be useful. A. In conclusion, reliability is an essential factor for receiving a better healthcare service. From my point of view, knowing the details of treatment and having a mutual relationship between doctors and patients, are the two important reasons that increase the speed of improvement of illness. B. To sum up, I strongly believe that conventional medicine and  alternative therapies can and should coexist. They have different strengths, and can both be used effectively to target particular medical problems. The best situation would be for alternative therapies to be used to support and complement conventional medicine. C. In conclusion, most people should privately insure their health, but it is unreasonable to suppose that all citizens can afford it. Therefore, a safety net in the form of a basic free health care system must exist for the very poor and the unemployed.