If A={x∈Z:x2=1}A = \{x \in \mathbb{Z} : x^2 = 1\}A={x∈Z:x2=1}, what is the set in roster form?
{−1,1}\{-1, 1\}{−1,1}
{1}\{1\}{1}
{0,1}\{0, 1\}{0,1}
{−1,0,1}\{-1, 0, 1\}{−1,0,1}