Which is true of the AC ESS Bus in the event of an AC BUS 1 FAULT?

Tricky question, I would not say that the second is wrong, but I understand that the third is the best answer because according to DSC-24-20 there is a note on the AC ESS FEED pb stating: ''with the AC ESSS FEED Auto Switching *, AC BUS 2 will automatically supply AC ESS BUS when AC BUS 1 is lost.''

FCOM states that only manual selection will switch feed to essential bus from AC BUS 1 to AC BUS 2 (even in case of a failure). Note: Airbus offers an optional extra for this to happen automatically