Previous Year Questions

The blank requires a verb to connect the noun 'emergence' with the nouns 'verbal communication' and 'written cues'. 'Reciprocates' means respond to (a gesture or action) by making a corresponding one. Logically, 'emergence' cannot respond. Hence, I is a misfit in this sentence. Hence, I is negated. 'Emergence' is a singular subject, and a singular verb is required. Both words 'swaps' and 'exchanges' are singular, and both mean substitute (one thing) for another. Both words are grammatically correct and bring out a meaningful sentence. The sentence conveys that the emergence of new forms of interaction that have the potential to shift from verbal communication to written one can be confusing. Hence, option (c) is the correct answer.