Sneha2021 wrote:
KarishmaB GMATNinja
it is unlikely that the rate of respiratory ailments will decline before the regulations go into effect, since _________
(D) not all respiratory ailments are caused by airborne pollutants
If D is true, there are other reasons exist for respiratory ailments, so other factor would lead to increase in ailments. This could be the reason that rate of ailments unlikely to decrease.
Why D isincorrect?
The conclusion states that it is unlikely that the rate of respiratory ailments
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