Answer: (Detailed Solution Below)
Option C: Stratosphere
Detailed Solution:
The correct answer is “Stratosphere”.
The ozone layer, which absorbs the majority of the sun's harmful ultraviolet (UV) radiation, is located in the stratosphere.
It is particularly concentrated between 15 and 35 kilometers above Earth's surface. The ozone in this layer plays a crucial role in protecting life on Earth by filtering out most of the sun's harmful UV rays.