Which of the following was a basic idea of the magna carta?
a. kings are exempt from the law.
b. most property belongs to the state.
c. people have certain guaranteed rights.
d. only kings can declare war.

c. People have certain guaranteed rights.

Explanation:

the Magna Carta is a letter granted by John I of England in Runnymede, near Windsor, on June 15, 1215. It was written first by the archbishop of Canterbury, Stephen Langton, with the aim of making the steps between the monarch English, with wide unpopularity, and a group of rebellious barons. The document promised the protection of ecclesiastical rights, the protection of the barons before illegal detention, access to immediate justice and the limitations of the rates in favor of the Crown. The agreement would be implemented by a council of twenty-five barons. Innocent III, which caused the first war of the Barons.

there is an explationation of this on a site called crash   course world history 1

answer; /// the correct answer is (belongingness needs; good luck