The correct options are
A Roofs that are lighter in weight.
C Shelves and cupboards fixed to walls.
D Fire extinguishing equipment.
'Quake Safe' buildings can be constructed by using lighter construction material and simple structural design. Roofs are made lighter in weight so that when they fall, the damage is less. Shelves and cupboards are fixed to walls so that they don't fall on people during an earthquake. Some buildings can catch fire during an earthquake. Therefore, it is always safe to have an active fire extinguisher system.