please answer the question as soon as possible with appropriate justification

Dear Student , Q.The correct Option is (3) According to Fluid Mosaic model, the plasma membrane is composed of Phospholipids and extrinsic as well as intrinsic proteins. Membrane proteins can be integral (lying buried in the membrane) or peripheral (lying on the surface of the membrane). Fluid mosaic model shows the quasi-fluid nature of lipids enables lateral movement of proteins within the bilayer....hope this helps,Regards.