Let F be propositional formula $($q $\backslash$lor r$)\backslash$land $($

eg p $\backslash$lor

eg q$)\backslash$land p and let F$\text{'}$ be the result of exhaustively applying unit resolution to F$.$ Which of the following formulas could be F$\text{'}($assuming boolean equivalences from double negation, identity, domination, idempotence, and negation can be applied$)?$

a$).($p $\backslash$lor q $\backslash$lor r$)\backslash$land $($

eg p $\backslash$lor

eg q$)\backslash$land $($p $\backslash$lor

eg r$)$

b$).$ q v r

c$).$ r

d$).$ p

e$).$ None of the above