Question

promotion refers to the type of which of the following?
packaging used on products
displays products are placed in
people a company is trying to appeal to
message communicated to customers

Explanation:

Promotion in business - marketing sub - field is about communicating a message to customers to increase product awareness, sales, etc. It is not about packaging, product displays, or target audience per se in the context of what promotion specifically is.

Answer:

Message communicated to customers