What is 'early-bird' booking?

• A. Last-minute booking at premium price
• B. Group booking discount
• C. Free admission
• D. Discounted rate for visitors booking by a specified date well before the event

Answer: (D)

Early-bird booking means signing up and paying for an event well before it happens to receive a discounted price. It’s a plan that rewards people who commit early and helps organizers predict attendance and plan more effectively. This description fits best because it combines both the timing (well before the event) and the financial incentive (a reduced rate). The other ideas describe different scenarios: last-minute booking typically carries a higher price, a group booking discount is about saving when several people register together, and free admission means no cost at all. Understanding early-bird pricing helps you spot when you can save money by registering early and why organizers offer these incentives.