A particle with charge 3.20 x 10^?19 C is placed on the x axis in a region where the electric potential due to other charges increases in the +x direction but does not change in the y or z direction. Part A:The particle, initially at rest, is acted upon only by the electric force and moves from point a to point b along the x axis, increasing its kinetic energy by 1.60 x 10^?19 J. In what direction and through what potential difference Vb-Va does the particle move?a. The particle moves to the left through a potential difference of Vb-Va = 0.500 V. b. The particle moves to the left through a potential difference of Vb-Va = -0.500 Vc. The particle moves to the right through a potential difference of Vb-Va = 0.500 V. d. The particle moves to the right through a potential difference of Vb-Va = -0.500 V. e. The particle moves to the left through a potential difference of Vb-Va = 5.00 V. f. The particle moves to the right through a potential difference of Vb-Va = -5.00 V. Part B:If the particle moves from point b to point c in the y direction, what is the change in its potential energy, Uc-Ub?a. + 1.60 x 10^?19 Jb. - 1.60 x 10^?19 Jc. 0