Which of the following can benefit the event planner by providing an insight into expected participants? pre-registration form post-event survey all of the above event program excursion selection

The correct answer is: all of the above.<br /><br />Explanation: All of the options listed can benefit the event planner by providing an insight into expected participants. A pre-registration form allows the event planner to collect information about the participants before the event, such as their contact information, preferences, and any special needs. A post-event survey can provide valuable feedback from participants about their experience at the event, which can be used to improve future events. The event program can give the event planner an idea of the types of activities and content that are likely to be popular with participants. Excursion selection can also provide insight into the interests and preferences of participants. Therefore, all of the above options can benefit the event planner by providing an insight into expected participants.