What was the focus of the research presented in this text? The role of the teacher in creating a collaborative online learning experience for stud...

What was the focus of the research presented in this text?

The role of the teacher in creating a collaborative online learning experience for students.
The potential of online classrooms for collaborative learning.
The technical aspects of online classrooms.
a) Only I is correct.
b) Only II is correct.
c) Only III is correct.
d) I and II are correct.
e) I, II, and III are correct.