Article: a type of writing that could be published in a magazine or newspaper
Letter: a symbol that when you put multiple together you get a word
Speech: to Express your feeling through a thought out article like presentation
Report: spoken or written about something that you have heard about or investigated
Too many children swam in a pool at once, but no one got any instruction.
It should be D They introduce my supporting details since when your writing your body paragraphs you use supporting details to make the paragraphs so yeah...
Hope this helps
~Cupkake