What are the five main BC opposition muscles?

• A. The biceps, upper trapezius, serratus posterior, external obliques and rectus abdominis
• B. The deltoid, rhomboids, pectoralis major, external obliques and transversus abdominis
• C. The triceps, lower trapezius, serratus anterior, internal obliques and transversus abdominis
• D. The triceps, upper trapezius, serratus anterior, internal obliques and transversus abdominis

Answer: (C)