Find the vertex, focus, and directrix of the parabola with the given equation.(x - 1)2 = 20(y + 4)

A. vertex: (1, -4)  
focus: (1, 1)  
directrix: y = -9
B. vertex: (-4, 1)  
focus: (-4, 6)  
directrix: y = -4
C. vertex: (-1, 4)  
focus: (-1, 9)  
directrix: y = -1
D. vertex: (1, -4)  
focus: (1, -9)  
directrix: x = 1


Answer: A

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