maybe the author just want to keep that info secret and the story maybe not true at all so author doesn't want to tell readers, that what I think!
Tenzing
Norgay develops event in “The Dream Comes True altering them. So it could be
said that the correct option is A Norgay alternates descriptions of the difficulties
he and Hillary had on Mount Everest with examples of how their accounts of the
climb differed, because Hillary would later add or change some elements which
were different from Norgay version
I believe the answer is D
