Let h(x)=(x+1)2x−2. Which statement best describes the behavior of h(x) as x approaches −1?
a) h(x)→+∞ from both the left and the right
b) h(x)→−∞ from both the left and the right
c) h(x)→−∞ as x→−1− and h(x)→+∞ as x→−1+
d) h(x)→0 from both the left and the right