question: e-commerce:online business
choices.label: A B C D
choices.text: computer:mobile phone big data:cloud computing social media:twitter weibo:sms
explanation: "e-commerce" is a type of "online business". both "computer" and "mobile phone" are electronic devices, and "mobile phone" does not include "computer". "big data" depends on "cloud computing", and "cloud computing" does not include "big data". "twitter" is a kind of "social media". "weibo" and "sms" are both ways to communicate with people, and "sms" does not include "weibo".
relation: online business e-commerce R2.2
relation: computer mobile phone R2.4
relation: big data cloud computing R3.10
relation: twitter social media R2.2
relation: weibo sms R2.4