Final answer:
The park's admission price of $15 until 5 o'clock indicates a time-sensitive pricing strategy, used to manage demand and encourage visits during off-peak hours.
Step-by-step explanation:
If the park's admission price is $15 until 5 o'clock, it implies a time-sensitive pricing. This is not a discount rate or an early bird offer as those would imply a reduction of the standard admission price for coming at an earlier time. It is also not an evening surcharge since it does not indicate an additional charge after a certain time; rather, it suggests a standard price before a particular time. This pricing strategy is often used to manage demand, encouraging visitors to come at times when the park may be less busy.