Well saying dunno is an error in formal/academic writing. In academic writing you would have to write, i do not know, though.
Answer:
They create cultures that unleash originality in others, and that can only be done within a culture that welcomes dissent. Your organization might prefer consensus and harmony. In creative settings where the stakes are high, it is imperative to stimulate debate and criticism to improve the quality of ideas.
I f I understand the one you are talking about , it is interaction between individuals and multiple social systems
The subject of a text is the primary topic, idea or content that is discussed within the text.
