Given below are two statements, one labelled as Assertion (A) and the other as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below.
Assertion (A):Formaldehyde, widely used in plastics, wood products, insulating materials, glue and fabrics, is a serious allergen.
Reason (R):Allergens are substances that activate the immune system.
ABoth A and R are correct and R is the correct explanation of A
BBoth A and R are correct but R is not the correct explanation of A ✓ Correct
CA is correct but R is not correct
DA is not correct but R is correct
Correct answer: (B) Both A and R are correct but R is not the correct explanation of A
Explanation
Formaldehyde is indeed a common indoor allergen found in plastics, wood products, glues and fabrics.
The assertion is correct because prolonged exposure to it triggers allergic and respiratory reactions.
The reason is also correct: allergens by definition are substances that activate the immune system.
However the reason only defines allergens in general terms.
It does not explain the specific reason formaldehyde itself acts as an allergen.
Formaldehyde is also classed as a probable human carcinogen by health agencies.
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