If A and B are events such that \(\mathrm{P}(\mathrm{A}/\mathrm{B})=\mathrm{P}(\mathrm{B}/\mathrm{A})\neq 0\), then :

\(\mathrm{A}\subset \mathrm{B}\), but \(\mathrm{A}\neq \mathrm{B}\)

\(\mathrm{A}=\mathrm{B}\)

\(\mathrm{A}\cap \mathrm{B}=ϕ\)

\(\mathrm{P}(\mathrm{A})=\mathrm{P}(\mathrm{B})\)