Answer:
C, "I am unhappy to learn that you overlooked crucial details in the report. We just lost a potential client."
Explanation:
Since it is talking about one's feelings in the first person, using I, it is an 'I statement'.
Possible Answer
B.
<em>Not 100% on this on but pretty sur it is B.</em>
Hope this helps :)
Layers of government.
It is the right answer