Answer:
C. GREEN MARKETING
Step-by-step explanation:
Green Marketing is marketing of products proclaimed as environmentally safe. This marketing incorporates many important P's of Marketing : Product ('green' production process), Packaging (eg: biodegradable).
This type of marketing can also includes 'Corporate Social Responsibility' , investment in environmental upgradation as is the case in the question.
Value Proposition is statement to consumers' convincing their product distinctive worthiness. Brandfest is prospecting consumers collecting event , eg- exhibition. Branded Content is marketing through creation & dissemination of content . None of these three are related to it.