Question

which of the following is not part of the core muscle groups mentioned in the lesson?
bicep muscles
gluteal muscles
abdominal muscles

Explanation:

The core muscles include abdominal muscles (which are part of the front - of - the - core), gluteal muscles (part of the back - of - the - core). Bicep muscles are in the upper arm and not related to the core.

Answer:

C. Bicep muscles