Which one of the following pairs of 2,3- butane diol is enantiomeric?

Question

\[\begin {array} {1 1} (1)\;2R,3R\;and\;2S,3S & \quad (2)\;2S,3S\;and\;2S,3R \\ (3)\;2R,3R\;and\;2R,3S & \quad (4)\;2S,3S\;and\;2R,3S \end {array}\]