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$1$). Vertex at origin, Focus: $\left(0, \frac{1}{4}\right)$$\newline$A) $y=x^{2}$$\newline$B) $y=4 x^{2}$$\newline$C) $y=-(x+2)^{2}-1$$\newline$D) $y=-(x+2)^{2}+1$$\newline$E) $y=-x^{2}$