What question would you ask to determine the duration of the rental?

To determine the duration of the rental, asking how long the customer would like to rent the equipment is the most direct and effective question. This phrasing invites the customer to specify both the length of time they need the rental and any potential details regarding their plans. Understanding the required rental duration is crucial for managing inventory and scheduling, as well as ensuring customer satisfaction.

The other choices are less effective for this specific purpose. Asking for a credit card is a standard payment procedure and does not address the rental duration. Inquiring about what time the customer wants to return the equipment could imply a specific timeframe but may not give a clear indication of their entire rental period. Finally, asking if the customer is ready to go could signal the start of the process but does not clarify how long they intend to use the rental item.