Answer:
A. an increase in skin cancer among humans
Step-by-step explanation:
The ozone layer is a part of the stratosphere that absorbs most of the Sun's ultraviolet(UV) radiation.The ozone layer contains a lot of ozone present in it and it serves as a shield. The radiations are harmful to the body and pose serious health risk when humans are exposed to them.
Such risks include cancer of the skin due to the skin being the part of the body at a greater risk of exposure.