Find the domain of the function (f(x) = {√{x}}/{√{1-x²}}). Express your answer as an interval or as a union of intervals.
a) (x ∈ (-1, 0) ∪ (0, 1))
b) (x ∈ (-[infinity], -1) ∪ (0, 1))
c) (x ∈ (-[infinity], -1) ∪ (-1, 0) ∪ (0, 1) ∪ (1, [infinity]))
d) (x ∈ (-[infinity], -1) ∪ (1, [infinity]))