Final answer:
Apocrine sweat glands are known as scent glands because they secrete sweat that contains organic compounds that produce body odor upon bacterial breakdown, making them the correct answer from the options provided.
Step-by-step explanation:
Among the glands listed, sebaceous glands and apocrine sweat glands are associated with producing substances that can lead to scents on the human body. However, when referring to scent glands specifically, we are talking about glands that produce substances used for chemical communication. The apocrine sweat glands meet this criterion as they release sweat that includes organic compounds which, upon bacterial decomposition, lead to distinct body odors. These glands are typically found in densely hairy areas such as armpits and the genital region. In contrast, the sweat glands primarily function in thermoregulation, the salivary glands are involved in the digestion and lubrication of food, and the mammary glands produce milk for feeding offspring.