Which statement about market-oriented environmental tools is correct?
Market-oriented environmental tools offer a mechanism either for providing the same environmental protection at lower cost, but cannot provide a greater degree of environmental protection for the same cost.
Market-oriented environmental tools only offer a mechanism either for providing a greater degree of environmental protection for the same cost.
Market-oriented environmental tools offer a mechanism either for providing either the same environmental protection at lower cost, or providing a greater degree of environmental protection for the same cost.
Market-oriented environmental tools only offer a mechanism either for providing either the same environmental protection at lower cost.