refers to the means by which firms attempt to inform, persuade, and remind consumers — directly or indirectly — about the products and brands they sell.

Marketing Communications

Explanation:

Its the saying of the Kotler which is quoted here in the "fill in the blank" question. Kotler says that the marketing is the source by which the customers comes to know about the product and brings the product in its priority levels. This marketing requires communication which introduces the product to the customer and nowadays done by newspapers, television, social media, etc. So this is how marketing works.