Final answer:
Greg Mortenson, not Craig Martenson, is the person featured in 'Three Cups of Tea,' where he works to build schools in Pakistan following his mountaineering endeavors.
Step-by-step explanation:
In the book Three Cups of Tea by Greg Mortenson and David Oliver Relin, Craig Mortenson (the correct name is Greg Mortenson, not Craig Martenson) embarks on a mission to build schools in Pakistan after a failed attempt to climb K2. His efforts begin when he promises to build a school for a remote village after the locals helped him recover from his climb. The title of the book refers to the proverb that Mortenson learns during his time in Pakistan, which states that it takes three cups of tea to become friends: the first cup is a stranger, the second cup is a friend, and the third cup makes you family. This signifies the importance of taking the time to build trust and relationships.