QZone is developed by Tencent, which also owns QQ and WeChat with nearly 2 billion monthly active users.

• A. QZone was developed by Alibaba, which also owns QQ and WeChat with nearly 2 billion monthly active users.
• B. QZone was developed by Tencent, which also owns QQ and WeChat with nearly 2 billion monthly active users.
• C. QZone is developed by Baidu, which also owns QQ and WeChat with nearly 2 billion monthly active users.
• D. QZone was developed by ByteDance, which also owns QQ and WeChat with nearly 2 billion monthly active users.

Answer: (B)

Understanding which company developed QZone comes down to recognizing Tencent’s role in its social ecosystem. QZone is a Tencent product, designed to sit alongside Tencent’s other platforms like QQ and WeChat. Tencent owns both QQ and WeChat, and these services collectively reach nearly 2 billion monthly active users, which helps explain QZone’s place and potential reach within that network. The other tech giants—Alibaba, Baidu, and ByteDance—do not develop QZone; they operate their own distinct services and user bases. So, the statement that QZone was developed by Tencent, which also owns QQ and WeChat with nearly 2 billion monthly active users, is the best fit.