Question: What are the 8 principles taught in the Open the Door to Tai Chi system? Need Assignment Help? Question options: a) Columns, Revolving, Bending, Rowing, Energy fields, Martial Arts, Relaxation/Connectedness, Breathing b) Columns, Rotation, Balance ,Rooted/Grounded, Ball of Energy, Martial Arts Applications, Relaxation/Connectedness, Breathing c) Columns, Rotation, Balance, Revolving, Balls, Fighting skills, Relaxing, Breathing d) Columns, Rotation, Bending, Rooted, Ball of Energy, Martial Arts Applications, Relaxation/Connectedness, Breathing