Kellogg's Is Using a Sales Promotion Campaign for Its Special

Kellogg's is using a sales promotion campaign for its Special K breakfast cereals. The promotion involves coupons in magazines aimed at working mothers, offering refund offers for multiple purchases, and mailing samples to homes in selected postcodes. All of these methods that Kellogg's is using are types of:

A) trade promotions.
B) intermediary promotional activities.
C) consumer promotions.
D) functional promotions.
E) public relations activities.