The king who was forced to agree to and sign the Magna Carta was:
d) King John
Explanation:
1. King John of England was compelled to sign the Magna Carta in 1215.
2. The Magna Carta was a document that limited the king's powers and established certain legal rights for the barons.
3. It aimed to prevent the king from abusing his power and ensure fair treatment for all individuals under the law.
4. King John's signing of the Magna Carta marked an important step towards the establishment of constitutional rights and the rule of law in England.
