Jeffrey served in the Army National Guard. After returning from overseas deployment, he struggled with PTSD, anger, and pain from a back injury. At one low point, his wife removed weapons from their home to help keep him safe, and she urged him to get help. Jeff's therapist told him that things which work both sides of the brain can help people cope. According to one of the videos assigned for chapter twelve, Jeff was already involved in _____ and started _______

A. mountain climbing; karate
B. gymnastics; hip hop lessons
C. running marathons; swimming
D. weight lifting; boxing