In the question below, four words are given in bold, which may not be arranged in the correct order. Choose the replacement needed between the words to make the sentence correct and meaningful.

A/an anonymity (A) disadvantage of online discourse (B) is that people can often say whatever (C) they like in complete major (D).

Correct option is D

The interchange is needed between the words ‘anonymity’ and ‘major’. Thus, the sentence will be, “A major disadvantage of online discourse is that people can often say whatever they like in complete anonymity.”