Which of the following is not true of the data component of social media information systems $($SMIS$).$

A$.$ SM application providers do not store nor retrieve SM data on behalf of sponsors and user communities.

B$.$ Content data is data and responses to data that are contributed by users. Connection data is data about relationships.

C$.$ Connection data differentiates SMIS from Web site applications.

D$.$ Both Web sites and social networking sites present user and responder content.

E$.$ Social media $($SM$)$ data falls into two categories: content and connection.