Answer:
Open
Explanation:
Before delving into more explaination let us first fill in the gap in the question above. Note that the the capitalized word is he word used to fill in the gap.
''The OPEN self represents all the information, behaviors, attitudes, feelings, desires, motivations, ideas, and so on that we know about ourselves and that others also know.''
When someone is said to be open, it means that the person's characters are straight. People know about his or character and he or she knows that too. There is this other side that is normally consider as the ''other side'' which is also called the Blind self in which someone's or individual's attitudes or characters are known by other people and which the person that has the characters or attitude or Behavior does not even knows that he or she has.