It's A as to the avoiding double negation which is not possible in English.
6. Myriad - Countless
7. Substantial - Large
8. Project - Forecast
9. Perspective - Viewpoint
Have a great day <3 (You can trust me on the answers if you get any wrong you can report me :)
A. Would be correct because mayor is the subject and lives being the verb.
Answer:
1. cite your source 2. include quotations 3. paraphrase 4. present your own idea 5. use a plagiarism checker
Explanation: