Choose the correct option to complete the text below.
Drone saves missing 65-year-old climber in the Himalayas
Daniel Van Boom July 18, 2018
Scottish climber Rick Allen _____ a drone after he had fallen during a solo climb of Broad Peak mountain in the Himalayas. Allen's climbing bag _____ a base camp worker, prompting the drone _____ to successfully locate him. Then, Rick Allen _____ without significant injury.
(Adapted from https://www.cnet.com)