Definition: In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: Who was the ruler of the Middle East country that Kristol and Kagan advocated for a regime change? Passage:In 1998, Kristol and Kagan advocated regime change in Iraq throughout the Iraq disarmament process through articles that were published in the New York Times. Following perceived Iraqi unwillingness to co-operate with UN weapons inspections, core members of the PNAC including Richard Perle, Paul Wolfowitz, R. James Woolsey, Elliot Abrams, Donald Rumsfeld, Robert Zoellick, and John Bolton were among the signatories of an open letter initiated by the PNAC to President Bill Clinton calling for the removal of Saddam Hussein. Portraying Saddam Hussein as a threat to the United States, its Middle East allies, and oil resources in the region, and emphasizing the potential danger of any weapons of mass destruction under Iraq's control, the letter asserted that the United States could "no longer depend on our partners in the Gulf War to continue to uphold the sanctions or to punish Saddam when he blocks or evades UN inspections." Stating that American policy "cannot continue to be crippled by a misguided insistence on unanimity in the UN Security Council," the letter's signatories asserted that "the U.S. has the authority under existing UN resolutions to take the necessary steps, including military steps, to protect our vital interests in the Gulf." Believing that UN sanctions against Iraq would be an ineffective means of disarming Iraq, PNAC members also wrote a letter to Republican members of the U.S. Congress Newt Gingrich and Trent Lott, urging Congress to act, and supported the Iraq Liberation Act of 1998 (H.R.4655) which President Clinton signed into law in October 1998.


b