Which of the following is logically equivalent to PrightarrowQP \\rightarrow QPrightarrowQ?
QrightarrowPQ \\rightarrow PQrightarrowP
negPlorQ\\neg P \\lor QnegPlorQ
negPlandQ\\neg P \\land QnegPlandQ
PlandnegQP \\land \\neg QPlandnegQ