Context: Read the text about a person in motion.
Duncan rode an escalator from the first floor to the second floor of a shopping mall.
Complete the statement. Assume that Duncan's mass did not change.
The gravitational potential energy stored between Duncan and Earth () as he rode the escalator.
A. increased
B. stayed the same
C. decreased
Identify the correct option from the choices provided and respond with the letter of the correct option.

A