Which of the following is true about the Palestinian Liberation Organization?

I think It supports the use of violence in the conflict with Israel is it because: The PLO was considered by the United States and Israel to be a terrorist organization until the Madrid Conference in 1991. In 1993, PLO recognized Israel's right to exist in peace, accepted UN Security Council resolutions 242 and 338, and rejected "violence and terrorism"; in response, Israel officially recognized the PLO as the representative of the Palestinian people.[C is it because: The PLO was considered by the United States and Israel to be a terrorist organization until the Madrid Conference in 1991. In 1993, PLO recognized Israel's right to exist in peace, accepted UN Security Council resolutions 242 and 338, and rejected "violence and terrorism"; in response, Israel officially recognized the PLO as the representative of the Palestinian people. The PLO was considered a terrorist organization by the US and Israel until 1991. It did perform a number of airplane hijackings in the 60s and 70s. The UN has given it observer status, so they aren't calling for its end. The PLO has renounced its charter sections which called for armed resistance and the destruction of Israel.