Answer:
Charlie, and the reader as well, both begin to have an inkling that his intelligence may not be permanent as he listens to Dr. Nemur's presentation in "Progress Report 13." Charlie even realizes that Nemur did not take into account his rapid rise in intelligence, and that now, Charlie may even regress into a lower IQ than before the experiment.
They should choose the last door which read spen ded glen because the other two read lowe ater leading to deep of sea and other read comb u stion leading to fire.
<u>Explanation:</u>
The story talks about two people who are trapped under ground and want to escape in to the world back after being trapped for a long period of time. So to their escape, elf came and told them about three doors out of which one would help them move out safely.
They now had to decide very carefully after thinking which door to choose out of the three with which they could move out.
