At which point on the roller coaster will the car have the greatest amount of gravitational energy

first hill

Explanation:

The first hill of a roller coaster is always the highest point of the roller coaster because friction and drag immediately begin robbing the car of energy. At the top of the first hill, a car's energy is almost entirely gravitational potential energy (because its velocity is zero or almost zero).

the answers would be

the first one and the second one