When two parties are involved in a mutual mistake $($misunderstanding$)$ as to the meaning of a term of the contract, which of the following is usually applied by the court to settle the matter?

a$.$ Non est factum

b$.$ The reasonable person test

c$.$ The court will find that there is no contract because there is no meeting of the minds.

d$.$ Caveat emptor

e$.$ The equitable remedy of rectification