Which is identified as the coefficient of momentum transport?

Correct option is B

The coefficient of momentum transport describes the rate at which momentum diffuses through a fluid due to viscous effects. This property is specifically known as kinematic viscosity.

$$\begin{aligned}&\text{It is mathematically defined as:} \\&\nu = \frac{\mu}{\rho} \\[1em]&\text{Where:} \\&\mu = \text{Dynamic viscosity (Pa} \cdot \text{s or N} \cdot \text{s/m}^2\text{)} \\&\rho = \text{Density (kg/m}^3\text{)} \\&\nu = \text{Kinematic viscosity (m}^2/\text{s)} \\[1em]&\text{It has the \textbf{same dimensional form} as a diffusion coefficient,} \\&\text{and thus is referred to as the \textbf{momentum diffusivity},} \\&\text{or \textbf{coefficient of momentum transport}.}\end{aligned}$$

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