1. To Reduce (E). Make less; decrease.
2. Exorbitant (D). Much more than reasonable.
3. To cull (B). To collect something from different places.
4. Showcase (A).Good qualities of someone or something.
5. To eliminate (C).To get rid of something that is not wanted or needed.
Answer:
a. Run on
Explanation:
'The Canadian side of Niagra Falls is beautiful,' is a complete thought, therefore it should be followed with a period.