(A) question mark, because when you ask a question it lowers your voice and that means your thinking, and confused, so it lowers your voice. Plus i got it right also, If your pitch bends down as you approach the end of the sentence, then you are using “down speak,” or what linguists refer to as “falling intonation.” If your pitch increases steadily as you approach the end of the sentence, rising up toward the end of the word “Monday,” then you used “high rising terminal,” or “upspeak". Thank you!!