An air bubble of 1 cm radius is rising at a steady rate of `2.00ms^-1` through a liquid of density `1.5gcm^-3`. Neglect density of air. If `g=1000cms^-2`, then the coeffieciet of viscosity of the liquid is
A. `0.166xx10^3` Poise
B. `1.66xx10^-3` poise
C. `166xx10^3` poise
D. `16.6xx10^3` poise