For a conic section, if a focus is (−1,1), eccentricity is 3, and the equation of the corresponding directrix is x−y+3=0, then the equation of the conic section is:
a) x²+y²+3x−2y+5=0
b) x²+y²−3x+2y−5=0
c) x²+y²+3x+2y−5=0
d) x²+y²−3x−2y+5=0