Which of the sets of statements below will add 1 to x if x is positive and subtract 1 from x if x is negative but leave x alone if x is 0? A) if (x > 0) x else x B) if (x 0) x++ else if (x 0)x- C) if (x0) x++ if (x 0) x- else x=0; D)if(x:= 0) x=0; else x++ E) x++