Answer:
(B) blind area
Step-by-step explanation:
The Johari Window is the square that describes and sets the things that are knwon to me, unknwon to me, knwon to others and unknown to others, in order to build relationshps and increase interpersonal effectivenes we need to decrease the size of the Blind are, which is the combination of those things that are unknow to self and known by others, so we can help people grow and be better.