Give the domain for p(x) =x+3​/x²−8x−9
a) (−[infinity],−3) ∪(−3,3) ∪(3,[infinity])
b) (−[infinity],−3) ∪(−3,3)
c) (−[infinity],−3) ∪(3,[infinity])
d) (−[infinity],−3) ∪(3,3) ∪(3,[infinity])