9) The statement "$x$ is odd if and only if $\frac{x}{2}$ is not an integer" is equivalent to which pair of statements.

"If $x$ is odd, then $\frac{x}{2}$ is an integer" and "If $\frac{x}{2}$ is an integer, then $x$ is odd."

"If $x$ is odd, then $\frac{x}{2}$ is not an integer" and "If $\frac{x}{2}$ is not an integer, then $x$ is odd."

"If $x$ is not odd, then $\frac{x}{2}$ is not an integer" and "If $\frac{x}{2}$ is not an integer, then $x$ is odd."

"If $x$ is even, then $\frac{x}{2}$ is an integer" and "If $x$ is an integer, then $\frac{x}{2}$ is even."

None of the Above
