Is the Following an Example of Theoretical Probability or Empirical

Multiple Choice

Is the following an example of theoretical probability or empirical probability? At a carnival shell game the player can pay three dollars and choose the shell that he or she believes is hiding the prize. There are four shells that are thoroughly mixed up after each guess. The player concludes that there is a one in four chance of randomly picking the winning shell.

A) Empirical
B) Theoretical