Which of the following approaches to collaboration is most common?

Each team member writes one part of the report individually, and then the editor revises each part and submits the complete draft to the whole group for final approval or additional revisions.

The whole team writes the report collectively, and then the editor revises the draft and submits it to the group for final approval or additional revisions.

One person writes the entire report, and then the group$-$led by the editor$-$revises it collectively.

Each team member writes a report, and then the team leader chooses the best one.