You Have Been Appointed to an Interdisciplinary Team Charged to Work

You have been appointed to an interdisciplinary team charged to work with a team of architects and designers to re-design the waiting area in the outpatient clinic of the University X Healthcare System. Members of this team include professions and disciplines that you have not worked with in the past i.e. architects and designers. Community members and former patients are also part of the team. You have made a commitment to be the 'best' team member you can be and have chosen to use the Johari window to identify and improve your relationships within the group.
Which quadrant of the Johari window represents information known by you but you but not shared with others?

A) Quadrant 1 (open/free area) .
B) Quadrant 2 (blind area) .
C) Quadrant 3 (hidden area) .
D) Quadrant 4 (unknown area) .