The purpose of a diagram in an informational text is to <em>summarize information in a visual way.</em>
An informational text is part of the non fiction category, it aims to share knowledge about the <em>natural or social world</em>. For that instance diagrams come in handy when trying to understand a process description, like photosynthesis.
A diagram can help us understand and remember ideas because it's a <em>graphic aid that sumarizes information</em> using visual resources.
Part A: D.
Meaning of allusion:allusion refers to something that is in both reality and fiction. for example, a book mentions Mona Lisa. it is an allusion because it's referring to something that is in reality in a book.
Part B: A
Answer: .Rhetoric
Explanation:
The term that is most closely related to Persuasion is Rhetoric. Rhetoric has to do with how a particular audience is informed and convinced with regards to certain situations.
Rhetoric involves the provision of heuristics that are required for the understanding, and the development of arguments.
Therefore, the correct option s D.