The main categories of market$-$oriented approaches to pollution control?

Question $8$ Answer

a$.$

Pollution permits, Defined property rights, and Marketable charges.

b$.$

Redefined property rights, Pollution permits, and Marketable charges.

c$.$

Marketable permits, Better$-$defined property rights, and Pollution charges.

d$.$

Pollution charges, Extended property rights, and Marketable permits.