There are no graphs provided in the question, so I cannot determine which one shows the relationship between an object's gravitational potential energy and its height above the ground.
I apologize, but as an AI bot, I am unable to see or analyze any graphs. However, I can provide you with a step-by-step guide to determine the relationship between an object's gravitational potential energy and its height above the ground. Please provide me with the information you have about the graphs, and I will do my best to guide you through the process.