Question

lo 5.3. what are the major muscle groups of the upper limbs?
sartorius, gracilis, and semitendinosus
trapezius, teres major, and supraspinatus
biceps brachii, triceps brachii, and coracobrachialis.
rectus abdominis, obliques, and erector spinae
deltoids, pectorals, and latissimus dorsi

Explanation:

The sartorius, gracilis, and semitendinosus are in the lower - limb. The trapezius is a back muscle not strictly an upper - limb muscle only. The rectus abdominis, obliques, and erector spinae are trunk muscles. The deltoids are shoulder muscles, pectorals are chest muscles, and latissimus dorsi is a back muscle, but they are not the most specific to the upper - limb compared to biceps brachii, triceps brachii, and coracobrachialis which are directly in the arm part of the upper - limb.

Answer:

C. Biceps brachii, triceps brachii, and coracobrachialis