Question

aron ralston, in the film \127 hours,\ documented his ability to survive ______. cutting off his own leg an ultra-marathon cutting off his own arm

Explanation:

In the film "127 Hours", Aron Ralston was trapped by a boulder and had to cut off his own arm to survive. The other options are incorrect: he did not cut off his leg, and an ultra - marathon is not related to the events depicted in "127 Hours".

Answer:

cutting off his own arm