Correct Answer:
C. By whom is this mess being created
Explanation:
The correct answer is By whom is this mess being created because it accurately applies the grammatical rules for converting a present continuous interrogative sentence from active to passive voice.
- By whom is this mess being created: This is the correct choice. When converting an active voice question starting with 'Who' into the passive voice, 'Who' changes to 'By whom'. Because the original sentence is in the present continuous tense ('is creating'), the passive structure requires 'is/am/are + subject + being + past participle (V3)'. Lastly, inverted word order ('is this mess being...') must be maintained to keep it an interrogative sentence.
- Incorrect Options:
- By whom this mess is being created: This is incorrect because it uses assertive word order rather than interrogative inversion, turning a question into a relative clause.
- By whom has this mess been created: This is incorrect because it changes the tense from present continuous to present perfect ('has been created').
- Who has been created this mess: This is incorrect because it breaks structural word order and shifts the tense completely.