Crunches are principally a(n) exercise. A.abdominalB. armC. backD. chest Please select the best answer from the choices provided.

Crunches are principally an A. abdominal exercise.

Explanation:

Crunches focus on core strength, referring to the abdominal area. This type of exercise is generally  done to increase muscle.

They are done by laying on one's back and pushing the upper body up towards the legs, going back down without touching the floor and going back up.

the chair is the committee member from the majority party who has the most seniority. in the south carolina senate, the chair is the committee member from the majority party who has the most committee seniority.