Match List I with List II:
| Environmental Policy Instruments | Characteristics |
| (a) Market-based approach | (1) Pigouvian tax |
| (b) Fixed standards and regulations | (2) Tradable permits |
| (c) Negotiated agreements | (3) Command and control regulations |
| (d) Quantity-based approach | (4) Voluntary agreements |
Choose the correct alternative that shows the best match.
1
a-4, b-1, c-2, d-3
2
a-2, b-3, c-1, d-4
3
a-2, b-3, c-4, d-1
4
a-3, b-2, c-4, d-1