Answer:
yes, I rod the whole poem
Explanation:
Poems should be studied in many ways. Since these are complex and have more than one meaning to them. One should take the time to understand it thoroughly.
The Answer is: It is their only way out.
"Yes," replied the Professor, looking at me calmly from under his spectacles, "it is the only chance which remains to us of ever escaping from the interior of the earth to the light of day."
The answer is B. I'm 98% sure.