The case for advertising includes the fact that

A) it wastes society's scarce resources.
B) firms spend large sums of money to create meaningless differences among products.
C) it provides consumers with valuable information about product availability, quality, and price.
D) it creates wants that otherwise would not have existed.

Advertising plays a crucial role in informing consumers about the availability, quality, and price of products, which can help them make better purchasing decisions. This dissemination of information can enhance market efficiency by enabling consumers to compare products and make choices that best suit their needs and preferences.