Ren is an avid bicyclist who has joined an online discussion group about bicycle safety, organized by the owner of a bike shop. other members include a bicycle commuter, a competitive cyclist, and a mother whose young children are just learning to ride. ren is excited about being part of the discussion even though he has a project to complete and several other assignments that are due soon. which is most likely to be a challenge during this discussion? a. members presenting different perspectives b. ren doing other work while participating c. the group lacking someone to lead d. ren losing interest in the topic