\textbf{108-} If $g(x)=2x-3$ and $(f\circ g)(x)=4(x^2-4x+5)$, what is $f(x)$? \medskip (1) $x^2-4x+3$ \hfill (2) $x^2-4x+5$ \hfill (3) $x^2-2x+5$ \hfill (4) $x^2-2x+3$ \medskip