The Two Cereal Makers,Post and Kellogg,have Each Come Up with New

The two cereal makers,Post and Kellogg,have each come up with new cereal recipes.Post chooses not to advertise it,but Kellogg chooses to spend $10 million in advertising.Why do the two companies have different advertising strategies

A) Post doesn't advertise its cereal because brand names do not require advertisement.
B) Post doesn't advertise its cereal because a good quality product doesn't require advertising.
C) Kellogg advertises its cereal because customers will otherwise not try this new recipe.
D) Kellogg advertises its cereal because advertising signals the quality of its product.