Jake developed a toothpaste using only natural ingredients, and he has been quite successful selling the product in health food stores and some grocery stores. He has recently developed a toothbrush using bamboo and natural components. Jake is considering a __________, giving the toothbrush the same brand name as the toothpaste in order to create greater brand awareness.
A. co-brand
B. brand extension
C. premium brand
D. joint brand
E. natural brand
Answer: B. brand extension