Answer:
- Subject.
Explanation:
Organizing is one of the crucial elements to produce an effective essay as it arranges the thoughts and information in a structured manner. Note cards are most commonly employed to organize the paragraphs. The process begins with titling the 'subject or topic' on separate cards along with its description/notes and separate them in groups as per the topic and length of the paper. It helps in giving a concise and compact form to the ideas in a systematic and more presentable manner with highlighting each point sharply that offers a comprehensive meaning and understanding to the essay/paper. Thus, 'subject' is the answer.
The subject of each supporting paragraph. :)