Answer:
b
Explanation:
its b because it doesnt say any else then 15 or any clues so its tryna trick u
<span>Despite the important organs in the human and animal body, its behavior is still not clearly defined. <span>Traumatic
accidents, burning, orthopedics and cosmetic products rarely require
further study of human skin that needs to observe actual skin behavior
in certain conditions.</span></span>
