Answer:
There is no control group and variables were not addressed.
Explanation:
In the context, it is given that there is a dumping ground in a small town called Love Canal and harmful chemical waste of industries are dumped there. Lately, it is noticed that there were traces of the toxic substances on the walls of the schools and the hospitals. The hospitals also noticed that during the period of 1970 to 1980, there were increase in the number of the birth defects in the area. The people of the Love Canal has genetic abnormalities and the chemical waste is responsible for it.
Thus it can be concluded that there is a no such any control group in this case. The confounding variables like the comorbidities as well as the family history of the genetic defects were not addressed.
Answer:
<h2>Option - C</h2>
<h3>Hope it helps you </h3>
The sickness can originate from her predecessors, it's as of now in her qualities. Expires don't have anything to do with races.
Race and wellbeing allude to the connection between singular wellbeing and one's race and ethnicity. Contrasts in wellbeing status, wellbeing results, future, and numerous different markers of wellbeing in various racial and ethnic gatherings is all around recorded, alluded to as wellbeing abberations. The race is an intricate idea, and the two noteworthy contending speculations of race utilize organic definitions and social development to characterize the racial distinction.
