Which first responder assumes another role at the site of a chemical spill regardless of being the first one to arrive there?
a becomes the at the site of a chemical spill, even if the person does not arrive first at the site.
in a narrative, a lot that you learn about the plot and the characters (more importantly the main character) is through dialogue. if dialogue isn't effective in a narrative, your reader may not capture the situation that the characters are facing nor the personalities and of these characters.
i'm pretty sure your answer should be the paintbox era.
hope this ! =^-^=