Ejay Wants a Court to Consider Oral Evidence About a Written

Ejay wants a court to consider oral evidence about a written contract in order to resolve a dispute about an ambiguous term in one of her client's contracts.She decides that she will characterize the facts as giving rise to a collateral contract.Which of the following is TRUE?

A) Ejay is doing this because the collateral contract doctrine is the only way to have her oral evidence heard.
B) Ejay is a doing this because a collateral contract can never circumvent the rule preventing oral evidence from being used to prove the terms of a written contract.
C) Ejay is doing this because the collateral contract doctrine was overturned years ago.
D) Ejay is likely mistaken because there is a more direct method of having the court consider her oral evidence under the circumstances as oral evidence is often admissible to interpret written but ambiguous terms of a contract, without a collateral contract being proved.
E) Once a contract is in writing, oral evidence is never admitted to interpret the contract.