A liquid jet issues from a nozzle inclined at an angle of 
to the horizontal and is directed upwards. If the velocity of the jet at the nozzle is 18 m/s, what shall approximately be the maximum vertical distance attained by the jet from the point of exit of the nozzle?
(a) 4.2 m (b) 12.4 m (c) 14.3 m (d) 16.5 m