The use of specific bowls for feeding pets and other bowls for feeding humans illustrates the practical application of the principle of

A) pure and impure.
B) animal and human.
C) sacred and profane.
D) secular and spiritual.

The principle of sacred and profane differentiates between objects, actions, and spaces that are set aside for special, often religious, purposes (sacred) and those that are part of everyday life (profane). Using specific bowls for pets versus humans reflects this distinction in a secular context, where certain items are designated for specific uses, separating the ordinary from the special or reserved.