Question

sebaceous glands secrete a substance called:
a mucous
b sweat
c sebum
d acid

Explanation:

Sebaceous glands are part of the skin's structure. Their main function is to secrete sebum. Mucous is secreted by mucous - producing cells (not sebaceous glands). Sweat is secreted by sweat glands. Acid is not the specific secretion of sebaceous glands.

Answer:

C. sebum