41. Receptor 'R is over expressed in CHO cells and analysed for expression. 6x10 cells were incubated with its radioactive ligand (specific activity 100 Counts per picomole). If the total counts present in cell pellet was 1000 cpm, the average number of receptors 'R per cell is (assume complete saturation of receptors with ligand and one ligand binds to one receptor) (a) 104 (b) 105 (c) 106 (d) 10