Scent Marking, or Strategically Placing a Chemical Mark in the Environment

Scent marking, or strategically placing a chemical mark in the environment, is accomplished by means of special scent glands. These glands are

A) endocrine glands, which means that they have ducts that release their products to the body surface.
B) endocrine glands, which means that they secrete their products into the spaces between cells.
C) exocrine glands, which means that they have ducts that release their products to the body surface.
D) exocrine glands, which means that they secrete their products into the spaces between cells.