What exercises should you perform if your goal is to improve flexibility of your chest and side muscles?
a. hip flexor and side stretch
b. shoulder stretch and chest and arm bends
c. side stretch and chest and arm bends
d. hamstring stretch and calf stretch

C, you want to target the chest and side muscles so those are the right exercises.

C. side stretch and chest and arm bends

Explanation:

Muscle flexibility is an important factor for both performing functional activities and achieving good athletic performance. It can be defined by the muscle's ability to stretch, allowing one or two joints in series to increase its range of motion. Of course, this flexibility is not achieved without any effort and it is necessary that specific exercises are done so that the flexibility is stimulated in a certain part of the body.

The exercises that have shown positive results in terms of stimulating flexibility are stretching and flexing, so we can say that if someone wants to improve the flexibility of the chest and side muscles, the ideal would be for them to do side stretch and chest and arm bends