To answer this question, we need to look at the correct way to phrase the sentence to maintain clarity and grammatical correctness.
Option A) "its victims unless inoculated" - This option is incorrect because it lacks a subject for the verb "inoculated." It is unclear who is doing the inoculating.
Option B) "its victims unless they are inoculated" - This option is correct because it includes the subject "they" for the verb "are inoculated." It clearly states that the victims need to be inoculated to avoid death from rabies.
Option C) "its victims unless inoculation is done" - This option is incorrect because it uses the passive voice without specifying who is performing the inoculation. It is unclear who is doing the inoculating.
Option D) "the victims unless there is an inoculation" - This option is incorrect because it lacks a clear subject for the verb "is." It is unclear who or what is performing the inoculation.
The correct answer is B) "its victims unless they are inoculated." This option is correct because it includes a clear subject ("they") for the verb "are inoculated," indicating that the victims need to be inoculated to survive rabies.