When the power goes off, Jack does not have a flashlight so he uses a glow stick to provide light. He is not very satisfied with how long the glow stick lasts. Which idea is the most likely to improve the longevity of the glow stick?

A) Only increase the volume of the activator solution cell.
B) Enlarge the overall size and volume within the glow stick.
C) Include a slow release activator phase to the main solution.
D) Increase the concentration both the main and activator phases.