With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: Over the course of his reign, a combination of higher taxes, unsuccessful wars and conflict with the Pope made King John unpopular with his barons. In 1215, some of the most important barons rebelled against him. He met their leaders along with their French and Scot allies at Runnymede, near London on 15 June 1215 to seal the Great Charter ("Magna Carta" in Latin), which imposed legal limits on the king's personal powers. But as soon as hostilities ceased, John received approval from the Pope to break his word because he had made it under duress. This provoked the First Barons' War and a French invasion by Prince Louis of France invited by a majority of the English barons to replace John as king in London in May 1216. John travelled around the country to oppose the rebel forces, directing, among other operations, a two-month siege of the rebel-held Rochester Castle.
text_B: From the way that this passage is written, does the signing of the Magna Carta likely represented the wishes of a real majority (at least, of the noble classes) rather than a coup by a small minority of barons or nobles?
YES.