Final answer:
The individual has damaged the layers of their skin due to sunbathing.
Step-by-step explanation:
The appearance of blistered and red skin indicates damage to the layers of the skin due to sunbathing. Sunburn occurs when the skin is exposed to excessive ultraviolet (UV) radiation from the sun or tanning beds. Ultraviolet radiation damages the DNA in skin cells, leading to inflammation and the formation of blisters.