Kellogg's is setting up a marketing information system to keep track of marketing trends. External sources of marketing data include all of the following EXCEPT which one?
A) forecasts about general economic conditions
B) the company's historical sales data
C) customers
D) competitors' activities

Question

Quizplus · Accepted Answer

The company's historical sales data is an internal source of marketing data, not an external source. External sources include forecasts about general economic conditions, customers, and competitors' activities.

Kellogg's Is Setting Up a Marketing Information System to Keep