The function $f(x) = mx - 1 + \frac{1}{x}$ is given.
Accordingly, what is the smallest value of $m$ that satisfies the property $f(x) \geq 0$ for all $x > 0$?
A) $\frac{1}{2}$\\
B) $\frac{1}{3}$\\
C) $\frac{1}{4}$\\
D) $\frac{1}{5}$\\
E) $\frac{1}{6}$