Mr$.$ Nelson plans on having his class use online discussion boards to post comments and respond to other students' comments about articles they will read for class. All the parents have given permission for the students to post online. Which of the following is the next best step Mr$.$ Nelson should take?

A$.$ Explain and model the types of comments the students should make and provide guidelines.

B$.$ Have the school technological services personnel come in and answer student questions.

C$.$ Tell the students how long each post must be$.$

D$.$ Assign each student a time of day to make their posts.