Context: Read the text about an object in motion.
Harold knocked a book off a bookshelf. The book fell to the ground.
Complete the statement. Assume that the book's mass did not change.
The gravitational potential energy stored between the book and Earth () as the book fell toward the ground.
A. decreased
B. stayed the same
C. increased
Identify the correct option from the choices provided and respond with the letter of the correct option.

A