The correct answer is C.
OBJ-5.1: Ease of communication: Communication is very easy amongst all parties involved. The environment is ‘communication rich’ with a lot of face-to-face interaction, and visual information is readily available in such forms as prototypes and models. Retrieval of information is also easy in order to reference knowledge, information, or data that is either historical or current. An example of this type of behavior is a high level of co-location.