sunburn on the skin surface disinfection of the skin tissues feeling of warmth on the skin immediate death of skin cells
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: What is the effect of absorption of infrared light by human skin?
Possibilities:
- sunburn on the skin surface
- disinfection of the skin tissues
- feeling of warmth on the skin
- immediate death of skin cells

feeling of warmth on the skin