Answer:
by elaborating through adding details about the topic
Step-by-step explanation:
When an author decides to add an important idea or a central concept to his text, he should look for statements that support and facilitate the reader's understanding of that idea and concept. This is done by adding details about the topic that was dicutive. These details must be harmonious with the topic, coherent and cohesive, to achieve the objective that they propose to achieve.