Skin provides protection from infection by

A. secreting antibodies from eccrine glands
B. generating heat to kill bacteria
C. providing a physical barrier against passage of bacteria
D. producing keratinocytes that engulf bacteria

Option A) secreting antibodies from eccrine glands

Explanation:

The eccrine glands, a type of sweat gland found in the deep layer of the skin provides protection from infection by producing sweat that is majorly composed of water, but also immunoglobins.

These immunoglobins are designed to respond to foreign and potentially harmful pathogens, removing them and protecting the body.

Thus, the answer is secreting antibodies from eccrine glands

Option C.

Providing physical barrier against passage of bacteria.

Explanation:

The skin is the largest organ of the body that have ability to resist and protect the body against pathogens infection.

The skin is the outer covering of the body and act as a physical barrier against passage of bacteria. The skin also contain innate and adaptive immune system that help to fight against infection. The skin protect the body from cold, moisture, sun rays and also help regulate body temperature.