A university wants to link its e$-$learning system with one of the popular social media platforms for information$-$sharing activities. The different social media platforms under consideration are Facebook, Instagram, Twitter, Skype, Blogger, and Friendster. Before selecting the platform, the university decides to analyze the student$$s preference through a survey. For each of the following variables, determine its measurement scale. If the variable is numerical, determine whether the variable is discrete or continuous.

A$.$ Race of the respondent.

B$.$ The respondent$$s three most preferred social media platforms.

C$.$ Time, in hours, spent per day on social media.

D$.$ Most effective type of information$-$sharing activity on social media.

E$.$ Number of students sharing educational information on social media.

F$.$ Whether the student agreed or disagreed with the university$$s decision.