160

150

132

100

B. 150

Given exp=$\sqrt{(9.5*0.0085*18.9)/(0.0017*1.9*0.021)}$

Now, since the sum of decimal places in the numerator and denominator under the radical sign is the same, we remove the decimal.

Given exp =$\sqrt{(95*85*18900)/(17*19*21)}=\sqrt{5*5*900}=5*30=150.$