When performing integer addition of the signed numbers A $+$ B$,$ the conditions to detect an overflow are:

A$>$B and A$>0$ and B$>0$

A$>0,$ B$<0,$ and result $<0$

A$>0,$ B$>0,$ and result $<0$

A$<0,$ B$>0,$ and result $>0$