Going over a course Review for Federal Real Property Lease Law and want to get a double check and see if i come up with the same answer: (Thank you in advance as this online learning experience was extremely difficult to follow along and confusing).

A court or board of contract appeals may resort to evidence outside the written contract itself under some circumstances in order to resolve ambiguities by application of the:

1 doctrine of accord and satisfaction

2 doctrine of waiver

3 parol evidence rule

4 rule of contra dictum