Who are the listeners of this talk most probably?

I’d like to welcome you all to the annual golf championship, and I hope that you enjoy the week you will be spending with us. I would like to remind you that, due to security arrangements, it is essential to have your press identification cards with you at all times. If you forget your card, you will not be allowed to enter any press area. Press conferences will be held at the end of play every day. All reporters will be able to question the selected competitors in the press room. Please indicate that you have a question by raising your hand. A tournament official will pass you a microphone when it is your turn. And please ensure that your mobile phones are off during question sessions.
Number 83.Who are the listeners of this talk most probably?
Number 84.How long is the event supposed to last?
Number 85.What does the speaker require the listeners to do?