Answer:
The correct answer is - option B. The team's overall goal
Step-by-step explanation:
After a effective and good leadership the most important thing of a team is the over all goal the team which is acts as the guiding compass for the team and its member.
All other ingredients including roles of individual role in team, commitment and efforts of leader and resolutions of conflicts are for achieving the goal of the team.
Thus, the correct answer is - option B.