Which of the following is true?

Wood burning is a good way to avoid air pollution because it does not burn fossil fuels.

It is legal for factories and power plants to release toxins (air pollution) in limited amounts.

It is illegal for factories and power plants to release any amount of toxins (air pollution).

Trucks and buses must meet certain air pollution requirements, but at this time, passenger vehicles do not have such requirements.

Question

Which of the following is true?
 
Wood burning is a good way to avoid air pollution because it does not burn fossil fuels.

It is legal for factories and power plants to release toxins (air pollution) in limited amounts.

It is illegal for factories and power plants to release any amount of toxins (air pollution).

Trucks and buses must meet certain air pollution requirements, but at this time, passenger vehicles do not have such requirements.

misssmartiez · Answer

a or d.

anonymous · Answer

It was niether...

hannaha · Answer

It's not C because most factories produce some air pollution and if it's not A or D than it would be B.

misssmartiez · Answer

Sorry, I meant B or D. I was speeding to help someone else, and not C, (it is obvious because we still have those factories. Wood still contributes to carbon dioxide.)

misssmartiez · Answer

I just realized how D tricked you.

If it is a must, and they don't do it, wouldn't it be against the law?