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Problem 1 - Entrance Test

The proliferation of social media, while offering unprecedented connectivity, (a) has also created an environment (b) where misinformation (c) spreads rapidly, (d) eroding trust in traditional institutions and (e) fueling societal division.

Correct: A

The subject of the sentence is "proliferation," which is singular. Therefore, the verb should be singular as well. The present perfect tense "has created" is the correct tense to show an action that began in the past and continues to have an effect in the present. Thus, (A) is correct.