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$$f(x)=3^{-2(x+1)}$$$\newline$Which of the following equivalent forms of the given function $f$ displays, as the base or the coefficient, the $y$-coordinate of the $y$-intercept of the graph of $y=f(x)$ in the $x y$-plane?$\newline$A) $f(x)=\left(\frac{1}{3}\right)^{(2 x+2)}$$\newline$B) $f(x)=\frac{1}{9}\left(\frac{1}{3}\right)^{2 x}$$\newline$C) $f(x)=81^{\left(-\frac{1}{2} x-\frac{1}{2}\right)}$$\newline$D) $f(x)=3^{(-2 x-2)}$