The correct answer for this would be option B. Based on the given sentence above, the highlighted part of the sentence which is "<span>who had been to the mansion before," is called an appositive phrase. This is considered as an appositive phrase because it renames or describes the noun next to it. Hope this helps.</span>
Active voice is when the subject performs the action(s) stated by the verb; whereas, passive voice is when the subject is acted upon by the verb. In this case, option C, is the correct one.
The fireworks are the subject of the sentence and they "light the night sky", resulting in active voice.
c)
The queen wants her subjects to know it is their duty to defend her.
B. Authoritative
This word means reliable or accurate.