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C. Clever tricks or deception
I think math because you have to use math to do your taxes, shopping, school work, and a lot of other things
I also think Science is a good subject to learn because then, you learn about the earth and world around us !
History is an amazing subject to learn about because you learn about what happened before us. You learn about how far we come.
I do not think English is a good subject to learn about because it tells you how to feel about the books you read. Don't get me wrong I love the way it teaches you your grammar ,but I do not think it's the most important thing to learn.
The only complete sentence there is C. :)
Scientist would be the best people to use when conducting research.