In the given question, a statement of Assertion is followed by a statement of Reason. Mark the correct answer.

Assertion: The Indian Constitution, which came into effect on 26 January 1950, has the dubious distinction of being the longest in the world.
Reasoning: At Independence, India was not merely large and diverse, but also deeply divided. A Constitution designed to keep the country together, and to take it forward had necessarily to be an elaborate, carefully-worked-out and painstakingly drafted document.

Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

The Indian Constitution, which came into effect on 26 January 1950, has the dubious distinction of being the longest in the world. At Independence, India was not merely large and diverse, but also deeply divided. A Constitution designed to keep the country together, and to take it forward had necessarily to be an elaborate, carefully-worked-out, and painstakingly drafted document.