Can someone please help me?

Which of the following is an example of an iron triangle?

Which of the following methods did the media use to project a winner in the 2000 presidential election before all the votes had been counted? a. hacking into computers to see the totals before they were made public b. exit polls and surveys c. scientific calculations based on cultural trends d. they picked who they wanted to win the election

Iswear on my life i will subscribe to pewdiepie.. you swore on your life so now you have ; )