Classify the following scenario involving a quantum particle: A particle in a potential well where its position and momentum are uncertain and evolve according to a wave function over time. Which category does this scenario best represent?

The description shows that the particle’s state is described by a wave function that changes over time. Other options are incorrect because A classical picture would treat the particle as a point that follows a straight trajectory; Superposition is like holding a coin that can be heads or tails until measured.