Regarding European Courts, Which Statement Is True

Regarding European courts, which statement is true?

A) European courts are in total disagreement with the reluctance of American courts to interfere with a contract because the value of the item in question has changed since the agreement.
B) European courts refuse to assume that parties accept the risk when they make a contract that the value might change later.
C) European courts permit rescission of the contract for a mistake of value when the mistake involves more than 10 percent of the value at the time of the contract.
D) European courts permit rescission of the contract for a mistake of value when the mistake involves more than 40 percent of the value at the time of the contract.
E) European courts permit rescission of the contract for a mistake of value when the mistake involves more than 50 percent of the value at the time of the contract.