The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
To understand why we want history, let us understand this by a simple example. What happens if you touch the flame of fire? It burns, doesnt it? This is experience. Will you again touch the fire? No. Because you have already experienced the burning sensation, havent you? We call this as Memory, Recollection and Retention. What would have happened if humans did not have memory at all? He would have committed the same mistake again and again. In this case, the progress of human beings is not possible. As human beings needs memory to progress, so, a society or a nation needs memory to progress. It is inevitable. Then what can be assumed as memory for a society or a nation? That is History!