Assertion(A) : The steam engine was invented by James Watt. Reason(R) : There was a problem of taking out water from flooded mines.
Correct Answer: R correctly explains A
Explanation:
The problem of pumping out water from the flooded mines provided the need of self-working engine, which led James Watt to invent the same.
Thus, both A and R are true & R correctly explains A.
