The correct answer to this open question is the following.
Although there are no options provided, we can say the following.
The two elements of informational writing that you will want to use for elaboration are the context or background and the body of the writing.
These are the two elements where you can elaborate, which means that you can develop your arguments and explain them in order for the reader to clearly understand your points. That is what elaboration means, to add more and expand your text with important ideas that support your thesis. When you elaborate, it means that you need to cover all the details of your writing.
An understatement is when an author presents something as casual and unimortant when the matter at hand is actually very serious. In other words, an understatement is when an author downplays the severity of a situation.
