Which of the following is NOT correct regarding exponential function y = a^x, a > 0,a CANNOT = 1
A. If 0<1, then the function is decreasing
B. If a>1 then the function is increasing. C. The function always passes through (0,1).
D. The function has a horizontal asymptote y=0.
E. The function has a vertical asymptote x=0.