Under What Circumstances Might a Court Refuse to Invoke the Application

Multiple Choice

Under what circumstances might a court refuse to invoke the application of the parol evidence rule?

A) where there are changed circumstances since the contract was negotiated
B) where it would be contrary to the business efficacy rule
C) in the case of a consumer contract requiring expatiated evidence
D) where consumer protection legislation provides that oral pre-contractual statements are not necessarily superseded by written terms