What is the word in bold?

Question

In 2001, Erik Weihenmayer became the first blind person to reach the summit of Mount Everest. Weihenmayer's [ bold word ] story inspires young adventurers around the world.

Weihenmayer's is the bold word, is it a

A. a plural noun
B. a plural possessive noun
C. a singular possessive noun

Answer 1

B. a plural possessive noun