According to the graph, which of the these remains constant throughout? a) total amount of energy b) potential energy c) kinetic energy d) time

A

Explanation:

Although you don't have the graph, I can predict the answer based on the first law of thermodynamics which is basically energy is always constant, it can never be created nor destroyed. So, its basically principle of conservation of energy where energy just changes form but total energy is constant.

Hope this helps!

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