Answer: I assume it would be to keep it from being less confusing.
Explanation: If you say on the left thoracic side on the body, you would be saying the left chest area. If you didn’t add that it was the left side it could mean anywhere in the chest and they could examine the wrong spot.
I think its C. hormones act on muscles and glands only. Because hormones act on cells, tissues, organs etc. So this is incorrect and the rest of them are correct.
