I was sure that the two last choices were not existing.

I have never seen anything about the 2nd choice.

So , I have only one choice to be kept and it was confirmed when I realised that this question was concerning SQL Server Agent ( a topic I have rarely used except when I was using a Developer Edition ).

I was lucky , but I need to think about it during 20 minutes ( logical as my surname is meaning : very , very slow , I need time to understand something but I a have a very good memory in which I have to dive in to find the answer )