The molecule known as is especially useful for storing metabolic energy.

Shanika should move the orange coaster car to point A and move the green coaster car to point D. This movement will result in the largest increase in potential energy because the farther the carts are from the magnet, the faster they will travel to get to the magnetic force. Therefore, they will create a big increase in potential energy.

Explanation:

I'm not sure if this is correct but I hope this helps :)