Answer:
The correct answer is letter "D": a hugely untapped market segment.
Step-by-step explanation:
The Bottom of the Pyramid (BOP), sometimes called the base of the pyramid, represents the biggest sector of the economic human pyramid. In the BOP there is an approximate of billion people living in extreme poverty. Corporate Social Responsibility (CSR) which involves companies' activities to match their objectives with society's goals, has in the BOP a lot of fields to discover and contribute.