"when participating in a group presentation, jose was asked by his group to introduce the topic and group members. he was also asked to keep track of time and ensure that no one either dominates the discussion or speaks too little. jose was serving as a"

"when Jose participed in a group presentation, he was asked by his group to introduce the topic and group members. he was also asked to keep track of time and ensure that no one either dominates the discussion or speaks too little. jose was serving as a" Moderator  because he had a moderator's responsibilities,and duties.

Explanation:

To understand why Jose was playing the role of "Moderator" we need to understand first the tasks of the role and why a "presenter" is different from it. All right, Jose's role had the following tasks: to introduce the topic, the group members, to track the time of everyone's participation and to make sure that no one dominated the discussion, he could have been a presenter but the task o making sure no one protagonist the discussion and that he had to take the time o everyone's participation would require another type of responsibility. The responsibility of the moderator, that is why he could not be only a presenter, but also a moderator because he had authority over them and guided their participation.