Respuesta :
Answer to your question..
I am sure it is B, Kinetic energy.
Explanation (if needed):
The formula for kinetic energy is KE = 1/2 ⋅ m ⋅ v 2
V is velocity. As it goes up that hill in question, it loses velocity.
Kinetic energy then gets affected by this in turn.
Hope this helped! :)
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