A. In type 1 cells, the mutant receptor with the non-functional kinase domain willinterfere with signalling by the cells’ normal RTK.B. In type 2 cells, the mutant RTK lacking functional ligand binding domain willbe inactive for signalling, but will not interfere with normal signalling mediatedby the cells’ own receptor tyrosine kinases.C. Equal levels of signalling will be achieved by type 3 and type 4 cells.D. The effects of mutant RTKs of cell type 2 and cell type 3 on levels of signallingby the cells’ own normal RTKs will be the same.