A line L : y = mx + 3 meets y-axis at E (0, 3) and the arc of the parabola $y^2=16x$ $0\le y\le 6$ at the point art $F\left(x_0,y_0\right)$. The tangent to the parabola at $F\left(X_0,Y_0\right)$ intersects the y-axis at $G\left(0,y\right)$. The slope m of the line L is chosen such that the area of the triangle EFG has a local maximum P) m= Q) = Maximum area of $△EFG$ is (R) $y_0=$ (S) $y_1=$

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