Given f(x)=2x−1−1 find the domain and range of its inverse. A. domain: (−∞,1)∪(1,∞) range: (−∞,1)∪(1,∞) B. domain: (−∞,−1)∪(−1,∞) range: (−∞,1)∪(1,∞) C. domain: (−∞,1)∪(1,∞) range: (−∞,−1)∪(−1,∞) D. domain: (−∞,−1)∪(−1,∞) range: (−∞,−1)∪(−1,∞)