Energy, work and power — practice question

Each second, the mass of air that strikes the blades of a wind turbine is $1.5 \times 10^4\,\text{kg}$. The air moves at a speed of $4.0\,\text{m s}^{-1}$. The density of the air is $1.2\,\text{kg m}^{-3}$. Which row states the volume of the air striking the blades each second and the kinetic energy of the air striking the blades each second?