Write the following SQL queries for the Hotel Management System attached. Each students have to answer only 3 of the questions below. The question assignments are given below for each student individually. Assume that the current Date is December 15, 2020 while writing the SQL queries.

3) Find the most preferable room type based on past reservations? 6) Which room types are not available on December 26th and 27th, 2020? 8) What is the most common room type for the current reservations? Please include the description of the room type.

AVAILABILITY PREFERENCES RESERVATION 1 TypeID 1 PREFERENCES 1 CID Date NumberOfAvailableRooms ROOM_TYPE Reservation Number Reservation CancellationDate CustomerlD TypeID Reservation Date CheckinDate Checkout Date Estimated Price DiscountRate NumberOfAdults NumberOfChildren CUSTOMER 1 CustomerID FirstName Middle Surname StreetAdress City ZIP Phone Number DOB Gender E-Mail Is Member Preferred-CC-NO TypeID Description Quantity DailyPrice RESERVATION_HISTORY 1 Reservation Number Customerid RoomType Reservation Date CheckInDate EstimatedCheckOutDate ActualCheckOutDate Room No MinibarConsumption LateFee TotalFee NumberOfChildren NumberOfAdults ROOM 1 RoomNumber TypeID Floor BedCapacity IsSmooking Room IsAvailable