Question

what does the old - timer from sulphur creek tell the man in to build a fire?
a. to watch out for water hidden beneath the snow
b. to never travel alone when its colder than fifty below
c. to put food against the body to keep it from freezing
d. to make sure to remove the ice from his dogs paw

Explanation:

In Jack London's To Build a Fire, the experienced old-timer from Sulphur Creek gives the inexperienced man a critical safety warning specific to the extreme Yukon cold. This warning is the core advice the man ignores, leading to his fate.

Answer:

B. To never travel alone when it's colder than fifty below