Donna, a rehabilitation counseling participant, suffered a traumatic brain injury (tbi) four months ago. feeling "much better," she is intent on going on a river rafting trip this weekend. the group leader is obligated to: a) stop her from doing so at all costs; an additional head injury would be devastatingb) inform her family of the dangers since donna will not listen to reasonc) caution donna regarding dangers and consequencesd) allow donna to make her own decisions; she is, after all, in the group voluntarily