What is the acceleration of fluid at B?

Question

In a stream line steady flow, two points A and B on a steam line are 1m a part and the flow velocity varies uniformly from 2 m/s to 5 m/s. What is the acceleration of fluid at B?                       

(a) 3 m/s²                     (b) 6 m/s²

(c) 9 m/s²                     (d) 15 m/s²