Final answer:
The correct answer is option c. Follicles in dry skin are best described as shallow and underactive because the oil glands don't produce enough sebum, which causes a lack of adequate moisture and protection.
Step-by-step explanation:
In regard to dry skin, follicles can be best described as C) Shallow and underactive. Dry skin is a result of the oil glands not producing enough sebum, which is an oily substance that helps to keep the skin and hair moisturized. Sebum functions to waterproof and lubricate the skin and hair, and also provides a barrier against bacteria that can lead to infections. In cases where the skin is dry, the sebaceous glands associated with hair follicles may be underactive, meaning they produce an inadequate amount of sebum.
This can lead to the hair follicles becoming dry as well. However, the follicles are still present in the skin; they do not become absent. They may appear to be shallow due to the lack of adequate oil production, which can result in flaky, rough skin texture.