. The acceleration of a particle which moves along the positive x-axis varies with its position as shown

The acceleration of a particle which moves along the positive x-axis varies with its position as shown. If  the velocity of  the particle is 0.8 m/s at x = 0 , the velocity (in m/s) of the  particle  at  x = 1.4 is

            (a) 1.6                        

            (b) 1.2                                                                                                                                                                                                          

            (c) 1.4                                                            

            (d) none of these