The answer is C) Sarcastic. Sarcastic means marked by or given to using irony in order to mock or convey contempt. The author is sarcastically saying that Editha's father is speaking in his "public-will-now-address-a-few remarks tone". She is attempting to use irony in this line so the answer is sarcastic.
Answer: An inference is a conclusion based off of evidence. You can apply it to the text as a conclusion.
B, because think about it like a scary movie, not knowing what’s gonna happen