When a reader makes inferences based on details provided, it enables the read to comprehend the text that they are reading. Inferences are conclusions under the basis of reasoning and evidences. It gives a summary of what is being read. In that way, it helps other people to easily understand what is being read.
B. Greedy because how she is to other people
Are you asking what a fireman is? cause if so it is someone who puts out fires at burning houses, barns.etc (anything on fire) hope that helps :)