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Assertion (A): $4^n$ ends with digit $0$ for some natural number $n$.
Reason (R) : For a number 'x' having $2$ and $5$ as its prime factors, $x^n$ always ends with digit $0$ for every natural number $n$.
Reason (R) : For a number 'x' having $2$ and $5$ as its prime factors, $x^n$ always ends with digit $0$ for every natural number $n$.
- (a)Both, Assertion (A) and Reason (R) are true and Reason (R) is correct explanation of Assertion (A).
- (b)Both, Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
- (c)Assertion (A) is true but Reason (R) is false.
- (d)Assertion (A) is false but Reason (R) is true.
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(d) Assertion (A) is false but Reason (R) is true