The correct option is B China
The 18th Shanghai Cooperation Organization (SCO-2018) was hosted by China in the city of Qingdao in June, 2018. China had taken over the rotating chair of SCO after the17th SCO summit 2017, which was held in Astana, Kazakhstan in June 2017. The SCO is consists of China, Russia, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, India and Pakistan. The SCO focuses on security- related issues of the region especially on counter terrorism cooperation.