Which One of the Following People Illustrates the Best Example

Which one of the following people illustrates the best example of creative behavior?

A) Billy uses and established method to solve an algebraic equation on a test.
B) Shamini uses an encyclopedia to find the significance of the date July 4, 1776.
C) Jack pours a solution of acid into a breaker of water in the chemistry lab.
D) Sheryl generates a list of solutions for the recycling problem.