The statement neg(PleftrightarrowQ)\\neg(P \\leftrightarrow Q)neg(PleftrightarrowQ) is equivalent to:
All of the above
PleftrightarrownegQP \\leftrightarrow \\neg QPleftrightarrownegQ
negPleftrightarrowQ\\neg P \\leftrightarrow QnegPleftrightarrowQ
PoplusQP \\oplus QPoplusQ