A batsman deflects a ball by an angle of `45^(@)` without changing its initial speed which is equal to `54 km/h` . What is the impulse imparted to the ball ? ( Mass of the ball is 0.15 kg)

Options

A. `4.2 kgms^(-1)`in the direction of the final velocity
B. `4.2 kgms^(-1)` in the direction of the initial velocity
C. `4.2 kgms^(-1)` in the direction opposite the initial velocity.
D. `4.2 kgms^(-1)` in the direction along the bisector of the initial and final directions of the velocity.