Answer:
Hello,
I say A, would be the answer, because someone else is saying "Open your mouth wide for the dentist." This dialogue, not a sentence because someone is saying it.
Therefore, the answer is A, Open your mouth wide for the dentist.
Hope this helps! :)
-<em>Fishylikeswater</em>
White Fang came in until he touched Gray Beaver's knee
At the sound, Kiche leaped snarling to the end of her stick, and there raged terribly because she could not come to his aid. But Gray Beaver laughed loudly
Both nose and tongue had been scorched by the live thing, sun-colored, that had grown up under Gray Beaver's hands
Yes, chamber is a noun. A noun is a person, place, or thing.
Hope this helps! Please mark brainliest xoxo