I believe your answer is C. If I'm wrong, then my apologies.
Answer A is right, It is difficult to approach the fire as smoke is accumulating all over the ceiling and the heat is also so great. it is due to the smoke all over that the visibility is also low so the use of portable extinguisher is not required here. special personal protective equipment will be required here.
Answer:
It's <u>on</u> Five Avenue<u> </u><u>,</u><u> </u>between Eight and Ninth Streets/
are the dinosaurs <u>on</u> the third floor?
It's in front <u>of</u> the stairs.
He's <u>at</u> home right now.
