The correct answer is Iran.
Iran is an Arab country whose political regime is a religious monarchy of vies contrary to the State of Israel, which is a Jewish country. In addition, US-Iran relations have been cut since the Iranian Revolution when the current regime overthrew the government of Shah Mohammad Reza Pahlavi, who had good relations with the United States.
Tensions between countries have recently increased as Iran has confirmed tests with rockets capable of carrying nuclear warheads, a threat to the security of Israel and the United States.