The correct answer is (d). The 15th Asia Pacific Economic Co-operation Summit in September, 2007 was held in Tokyo, Japan.
The Asia-Pacific Economic Cooperation (APEC) is a forum for 21 member economies that promotes economic growth, trade, investment, and cooperation in the Asia-Pacific region. The APEC Economic Leaders’ Meeting is the annual meeting of the leaders of the APEC member economies. The 15th APEC Economic Leaders’ Meeting was held in Tokyo, Japan, on November 13-14, 2007. The theme of the meeting was “Achieving a Vibrant and Secure Asia-Pacific Community.” The leaders discussed a wide range of issues, including economic growth, trade and investment, energy security, climate change, and food security. They also adopted a number of initiatives, including the Tokyo Declaration on the Future of APEC, the APEC Action Agenda 2010, and the APEC Energy Security Initiative.
The other options are incorrect. Beijing is the capital of China and the most populous city in the world. Jakarta is the capital of Indonesia and the largest city in Southeast Asia. Sydney is the capital of New South Wales and the most populous city in Australia.