3M Selected the Packaging Options for the Post-It^® Flag Highlighter

3M selected the packaging options for the Post-it^® Flag highlighter by

A) asking people on the street what type of packaging they prefer.
B) offering alternate product choices on its Web site.
C) conferring with inventors from other divisions of 3M.
D) listening to students' comments, questions, and concerns.
E) using information provided by a professional consulting firm.