A nurse is teaching a group of patients about weight management options. One patient asks why many ...

A nurse is teaching a group of patients about weight management options. One patient asks why many potential new drugs for long-term use in weight loss are not available. Which response by the nurse is correct?
 
  a. Although some drugs have shown benefits, these benefits do not outweigh the risks.
  b. None of these drugs have shown significant weight loss when compared with placebo.
  c. The abuse potential of most of these drugs is generally too high to warrant their use.
  d. The side effects of most of these drugs are too uncomfortable to maintain compliance.