Question

Crunches are principally a(n) __________ exercise.

a. abdominal
b. arm
c. back
d. chest

Answer 1

Its an abdominal exercise

Step-by-step explanation:

The crunch is a classic core exercise. It specifically trains your abdominal muscles, which are part of your core

Answer 2

A- abdominal

Step-by-step explanation:

abdominal exercise

Crunches are exercises which target the rectus abdominis or the '6-pack muscles' that run along the front of the torso