Can the graph of a standard exponential function: $y=b^x$, where $b>0$ and $b\ne 1$, ever have an $x$-intercept?

Only when $b>1$ will the graph cross the x-axis on the right side of the plane

Yes, every exponential function must cross the $x$-axis at least once because exponents can be negative

Yes, for certain bases, the graph will cross the $x$-axis when $x$ is a sufficiently large negative number

No, the $x$-axis, $y=0$, is a horizontal asymptote and the graph will approach the asymptote but it will never reach it