If in an ellipse, a focus is (6, 7), the corresponding directrix is x + y + 2 =0 and the eccentricity = 1/2 , then then the equation of the allipse is:
A. 7x²+2xy+7y²-44x-108y+684=0
B. 7x²+2xy+7y²-100x-116y+676=0
C. 9x²+2xy+9y²-44x-108y+684
D. None oof these