This country does not need any more restrictions on pollution. In fact, we should abolish those that are currently on the books. In spite of various restrictions, pollution levels have actually increased over the past 40 years. Most importantly, dramatic statistics show that, as pollution levels have increased over this period, the general health of the population has improved rather than deteriorated.
The author concludes that there should be no restrictions on pollution partly because
(A) they are no longer needed to improve the general health of the population
(B) they reduce the positive effect that pollution has on the general health of the population
(C) statistics show that as pollution restrictions have increased so have pollution levels
(D) pollution has not yet reached levels that are detrimental to the health of the general population
(E) they are ineffective in lowering pollution levels
As per author, health of the people has improved instead of deteriorated, with the rise in pollution.
So as per author i think it will be the positive effect of pollution. in order to retain the same author don't want any restriction.
i think " b" is the correct choice.