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Answer:
↣ C.) Smartphones can be equipped with helpful applications for reliable research sites and can download historical documents, scientific articles, encyclopedia entries, etc.
Step-by-step explanation:
In order for the student to provide more credible evidence regarding the necessity of smartphones in his essay, he should use the information above since it further explains that smartphones can be given various, useful, research applications to aid teenagers.
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I hope this helps!
peachtea ^-^
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