Statement — Dolphin populations in India have been decreasing sharply over the past few years. Courses of Action — I. Declare dolphins an endangered species and breed them in aquariums or protected areas. II. Enlist local communities to protect dolphins.

Introduction / Context:
Conservation crises typically demand both regulatory protection and on-the-ground stewardship. The statement signals a sharp population decline, warranting immediate protective status and broader community engagement to address threats such as by-catch, habitat loss, and pollution.

Given Data / Assumptions:

• Problem: rapid decline of dolphins.
• COA I: legal protection and assisted breeding in controlled/protected habitats.
• COA II: local community involvement in monitoring, reporting, and mitigation.

Concept / Approach:
Legal designation (I) enables stricter penalties, funding, and coordinated recovery plans, while breeding programs can support population rebound. However, many threats are distributed and chronic; partnering with fisherfolk and riverine/coastal communities (II) increases compliance, reduces incidental harm, and improves surveillance. The actions are complementary and jointly strengthen recovery odds.

Step-by-Step Solution:

Verification / Alternative check:
Either action alone is weaker: laws without local buy-in underperform; communities without legal backing lack authority/resources. Together they address biological and social dimensions.

Why Other Options Are Wrong:

Common Pitfalls:
Overemphasizing captive breeding while neglecting habitat; ignoring livelihood-linked incentives for compliance.

Final Answer:
Both I and II follow.