Let A={x∈Z:1<x2<20}A = \{x \in \mathbb{Z} : 1 < x^2 < 20\}A={x∈Z:1<x2<20} and B={x∈Z:∣x∣<4}B = \{x \in \mathbb{Z} : |x| < 4\}B={x∈Z:∣x∣<4}. What is A∩BA \cap BA∩B?
{2,3}\{2, 3\}{2,3}
{1,2,3,−1,−2,−3}\{1, 2, 3, -1, -2, -3\}{1,2,3,−1,−2,−3}
{0,2,3,−2,−3}\{0, 2, 3, -2, -3\}{0,2,3,−2,−3}
{2,3,−2,−3}\{2, 3, -2, -3\}{2,3,−2,−3}