Correct Option is **(A) the pascal-second**

We know that, the cofficient of viscocity

\(\eta = \frac{F}{A} \left(\frac{dx}{dv}\right)\)

\(\eta = \frac{Newton}{(meter)^2} \times \frac{meter}{meter/second}\)

\(\eta = \frac{newton}{(meter)^2} \times second\) ...... \(\because pascal = \frac{Newton}{(meter)^2}\)

\(\eta = \) Pascal . second