Answer:
The correct answer is letter "C": will be more valuable to firms that can reduce pollution only at high costs.
Step-by-step explanation:
Tradable pollution permits are instruments issued by the government that allows companies to pollute up to a certain level according to their businesses. In case the companies exceed the pollution permit provided, penalties will apply over the excess of pollution. A company can sell those instruments in case they were not used during a given period.
Thus, firms that unfortunately have to pollute environments to conduct their operations with a wide range of operations will value more the tradable pollution permits since reducing pollution costs tend to be expensive.