Which of the following is the correct order of
increasing field strength of ligands to form
coordination compounds ?
(1) ``\ce{SCN < F- < C2O4^{2-} < CN-}``
(2) ``\ce{SCN < F- < CN- < C2O4^{2-}}``
(3) ``\ce{F-< SCN- < C2O4^{2-}} < CN-``
(4)``\ce{CN- < C2O4^{2-} < SCN- < F-}``