The correct answer is: C. Is the work being finished on time by the officers?
The other options are incorrect because they use the past tense, which is not appropriate for a question about something that is happening now.
Option A: Was the work being finished on time by the officers?
This option is incorrect because it uses the past tense. The question is about whether the officers are finishing the work on time, which is something that is happening now. The past tense would be used if the question were about whether the officers finished the work on time in the past.
Option B: Is the work finished on time by the officers?
This option is incorrect because it uses the passive voice. The question is about whether the officers are finishing the work on time, which is something that the officers are doing. The passive voice would be used if the question were about whether the work was finished on time, regardless of who did it.
Option D: Was the work finished on time by the officers?
This option is incorrect because it uses the past tense. The question is about whether the officers are finishing the work on time, which is something that is happening now. The past tense would be used if the question were about whether the officers finished the work on time in the past.