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Problem 16 - Entrance Test

More than one study (A) have shown a correlation between (B) prolonged screen time and decreased attention spans (C) in adolescents, raising concerns (D) about the impact of technology on cognitive development. (E) No error

Correct: A

The phrase 'More than one study' takes a singular verb form. Thus, A is wrong and 'have' should be 'has'. Therefore, option A is the correct answer.