It's sentence 3.
The ambiguous pronoun is "her". It is unclear whose graduation happened that day.
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The correct answer is B.
That is because A and C are scientific facts, while B is not. Some might consider it to be too expensive while other might not think so.
To convince his audience to trust Christ.
Answer:
Democracy
Explanation:
We vote on our officials and people that I'll hold a place in office. While it may not always seem like the best government, we are very lucky to have a democracy in this country.