A is an individual or organization who seeks out opportunities to improve society by using practical, innovative, and sustainable approaches.

The correct answer is letter "B": social entrepreneur.

Explanation:

Social entrepreneurs are people interested in going into ventures not necessarily to generate revenue but for making a good to their societies. Their organizational activities mainly focus on providing pollution-free goods or acting as a philanthropic entity. These institutions have a high corporate social responsibility that aims to last over long periods.

answer; organization;