An electron is confined in a one-dimensional infinite square well with impenetrable walls at x =0 and x = a. The wave function for the electron at time t = 0 is given by (x,0) = N sin (7), where N is the normalization constant. Which one of the following is the wave function at time t? A) (x, t) = N sin () cos () B) (r, t) = N sin (2) e- C) None of the above State the correct answer. Write out a solution explaining this answer, as you would write a solution for a question you have authored yourself in the Peerwise system. [6]