Answer
$C$
Work Step by Step
Given $f(x)=(\frac{1}{2})^x$ it can be seen that $f(1)=(\frac{1}{2})^1=\dfrac{1}{2}$, this means that the point $(1,\frac{1}{2})$ has to be in the graph of $f$, which is in the graph of $C$.
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