Final answer:
This question is about displaying guestroom blocks by booking for selected dates and opening bookings by double-clicking.
Step-by-step explanation:
Displays the guestroom blocks by booking for the selected dates.
Double-clicking a booking will open it.
This question seems to be related to a computer software or an online booking system, which falls under the Computers and Technology subject. The task is to display the guestroom blocks based on the selected dates, and when a booking is double-clicked, it should open for further details.