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Given below are two statement: one is labelled as Assertion A and the other is labelled as Reason R: Assertion (A): 18th group elements are also known as inert gases. Reason (R): Group III elements are called alkaline earth metals. In the light of the above statements, choose the correct answer from the options given below:
A
A is true but R is false.
B
A is false but R is true.
C
Both A and R are true and R is the correct explanation of A.
D
Both A and R are true but R is NOT the correct explanation of A.
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