In the Context of Managing Lateral Relationships, a Gatekeeper Refers

In the context of managing lateral relationships, a gatekeeper refers to:

A) a team member who perceives that his interests are being opposed or negatively
Affected by another member in the same team.
B) a team leader who requires team members to interact frequently with outsiders, diagnose their needs, and experiment with solutions.
C) a team member who analyses simultaneously emphasizing internal team building and achieving external visibility.
D) a team leader who advocates making decisions with the team and then informing outsiders of their intentions.
E) a team member who keeps abreast of current developments and provides the team with relevant information.