A water tank is located 3 m above ground and depth of water in tank is 2 m. Exit pipe is 50 mm in dia and 50 m long. Velocity of water at the exit at the ground level is approximately (Take friction factor f = 0.05, g = 10 m/s$$^2$$)

A

1.5 m/s

B

2 m/s

C

0.7 m/s

D

1/4 m/s