The correct options are
A Houses in Catal Huyuk had common walls.
B The doors of the houses were present on ceilings.
The ancient city of Catal Huyuk is located in Turkey. The houses in Catal Huyuk were made of mud and clay. The houses had common walls and looked similar to a honeycomb. The doors of the houses were present on ceilings. These ceilings were also used as streets.
Every house had a cooking area, raised platforms as beds, wall paintings etc.