A political party's presidential candidate is selected by delegates at the party's national convention. The correct option among all the options that are given in the question is the first option or option "A". This is the procedure in most democratic countries around the world. I hope the answer has come to your help.
Domesticated animals could travel with you and if they were alone help with loneliness and they could help hunt. (It’s just a guess if you don’t want to listen don’t)