Which of the following sets represent a subset of Integers (ZZZ)?
{...−2,−1,0,1,2...}\{...-2, -1, 0, 1, 2...\}{...−2,−1,0,1,2...}
{1,2,3...}\{1, 2, 3...\}{1,2,3...}
{0,1,2...}\{0, 1, 2...\}{0,1,2...}
{0.5,1.5,2.5}\{0.5, 1.5, 2.5\}{0.5,1.5,2.5}