Dramatic irony means that the audience knows something the characters do not. For example, in the beginning of Hamlet, we know immediately that Claudius was the one who killed Hamlet's father, however, he doesn't know that from the very start.
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>
Answer:
my dad. he saved a mans life before he almost killed himself
Explanation: