Explanation:

Only statement 3rd is correct.

• Shanghai Cooperation Organization (SCO) was created in 2001.
• SCO was established as a multilateral association to ensure security and maintain stability across the vast Eurasian region.
• It envisages joining forces to counteract emerging challenges and threats, and enhance trade, as well as cultural and humanitarian cooperation.
• Prior to the creation of SCO in 2001, Kazakhstan, China, Kyrgyzstan, Russia and Tajikistan were members of the Shanghai Five.
• The SCO's official languages are Russian and Chinese. 
• Iran became the 9th member of SCO in 2021.

Hence option 2nd is correct.