How did the Magna Carta change the relationship between the monarch and the people? It made the monarch first among equals.
It allowed the people to choose the monarch.
It made the monarch accountable to the people.
It placed limits on the monarch’s power.

it placed limits on the monarchs power.

explanation:

there are two statements that are incorrect.

1. the marshall plan was a lend lease program. it was an economic plan that europe redevelop itself after wwii.

2. einstein didn't really do anything to further the allied cause in building the bomb. he merely sent a letter to fdr telling him (in 1939) that if the united states entered the war, perhaps it would be wise to build the bomb before germany did. i would say this answer is incorrect, but when america entered the war 2 years later, fdr thought it might be a good idea to take einstein's advice.

the 4th choice is definitely so wrong that is likely the single answer of this question