Which of the following observations demonstrates the fundamental characteristic of life known as energy?

A) Organisms are made of membrane- bound units called cells.
B) A bacterium replicates to become two bacteria.
C) Plants absorb sunlight to stay alive and reproduce.
D) The use of antibiotics has increased the frequency of bacteria populations that are resistant to those antibiotics.
E) The gene that specifies skin colour in frogs is passed from parent to offspring.