Consider the function f(x) = {1}/{x} - {1}/{x-2}. Identify the domain of f.
a. (-[infinity], 0) ∪ (0, 2) ∪ (2, [infinity])
b. (-[infinity], 0) ∪ (2, [infinity])
c. (0, 2)
d. (-[infinity], 0) ∪ (0, [infinity])