The correct answer is Option (C) - Qatar.

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<p>Hello there! Let's break down this interesting question about OPEC.</p>
<p>The correct answer is <b>Option (C) - Qatar</b>.</p>
<h3>Step-by-step Solution:</h3>
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<li><b>Understanding the Question:</b> The question asks which country announced its exit from OPEC in May 2026 after 59 years of membership.</li>
<li><b>Analyzing the Options:</b>
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<li><b>(A) Saudi Arabia:</b> Saudi Arabia is a founding member and a major player in OPEC. It has not announced any plans to leave.</li>
<li><b>(B) UAE (United Arab Emirates):</b> The UAE is also a significant member of OPEC and has not announced its exit.</li>
<li><b>(C) Qatar:</b> Qatar announced its withdrawal from OPEC in December 2018, with the exit becoming effective on January 1, 2019. This was after approximately 57 years of membership (having joined in 1961).</li>
<li><b>(D) Iran:</b> Iran is a founding member of OPEC and remains a member.</li>
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<li><b>Addressing the Date Discrepancy:</b> It's important to note that the date "May 2026" mentioned in the question is incorrect. Qatar's exit from OPEC became effective on January 1, 2019. As of now, no country has announced an exit from OPEC for May 2026. However, among the given options, Qatar is the only country that has actually exited the organization.</li>
<li><b>Conclusion:</b> Despite the incorrect date and membership duration mentioned in the question, Qatar is the only country among the choices that has left OPEC.</li>
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<p>Therefore, based on the countries listed, Qatar is the intended answer, acknowledging the factual error in the date provided in the question.</p>
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