yes
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In the first question the correct answer is "concerns" because works in the same literary movements often show the spirit of the time. In the second question the correct answer is "Transcedentalism", with representatives such as Thoreau, Emerson, Emily Dickinson and Walt Whitman.
You should use a correlative conjunction here.
Both . . . and
Either . . . or
Neither . . . nor
Not only . . . but also
