Answer:
The answer is d.
Explanation: Magna Carta is one of the ancient human rights process which is also known as great charter. This agreement was signed between king of England king John and a group of rebel barons. It was the result of some serious violation of ancient rules by king John which forced him to sign Magna Carta. This agreement freed the churches from the interference of government,freed the people from excessive taxes. It also assured the right of inheriting of own property by the people of kingdom,also gave the rights widows to keep their property who are not remarried. All above it brought the equality of law.
So undoubtedly it was an important step towards the idea of constitutional government.