Which of the following examples does William Ury use in his TED talk to show the importance and the impact genuine listening makes? (choose as many as apply)

Which of the following examples does William Ury use in his TED talk to show the importance and the impact genuine listening makes? (choose as many as apply)

The example of him mediating the political conflict in Venezuela with President Chavez. 
The example of him giving a TED talk.
The example of him negotiating a divorce settlement with his wife.
The example of him helping a Brazilian entrepreneur navigate a business dispute.