Analyse the given question — task. Maths CBSE Live product, Class 8.

Assertion (A): For any two positive real numbers \(a\) and \(b\), if \(a\) is increased by \(1\) and \(b\) is decreased by \(1\), then the increase in product is given by \(b - a - 1\).

Reason (R): \(a(b + 1) = ab + a\)

Assertion(A) is true but reason(R) is false
Both assertion(A) and reason(R) are true and reason(R) is the correct explanation of assertion(A)
Assertion(A) is false but reason(R) is true
Both assertion(A) and reason(R) are true but reason(R) is not the correct explanation of assertion(A)

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