Barbra has a meeting with a coworker about a project. She wants to encourage cooperation from her coworker so that he, too, feels committed to the project. Given this information, which of the following seating arrangements will most likely help Barbra achieve her purpose?

a.​Barbra must sit next to her coworker, facing the same direction.

b.​Barbra must seat her coworker within her zone of intimate space.

c.​Barbra must sit directly across from her coworker.

d.​Barbra must seat her coworker at a right angle to herself.