Which of the following intervals gives the interval(s) on which the function f(x) = 9x² - 6x - 3 is increasing?
a) Interval A: (-[infinity], {1}/{3})
b) Interval B: (-[infinity], -{1}/{3}) ∪ (1, [infinity])
c) Interval C: (-{1}/{3}, 1)
d) Interval D: (3, [infinity])
e) Interval E: ({1}/{3}, [infinity])