Answer:
D) I was disappointed in you
Step-by-step explanation:
When something is written in the past tense, that means it already has occurred--not that it is currently occurring or occurring in the future.
[occurred means happened]
"am" is present tense, it means the event is happening now
"will" is future tense, it means that the event happens in the future
"going to" is also future tense, it is talking about an event in the future