Why is Wikipedia a good place to start but a bad place to stay and get all of your information? Its authors do not bother to cite the sources of included facts.
Its articles are created by both experts and non-experts.
It consists of people's opinions about topics, not factual information.
It includes information on all kinds of topics, some of them obscure.

For which reason does the revision best suit the advancement of the action? because cathy expresses her exasperation with her mother through her own words rather than through the narrator’s explanation because readers are introduced to a new character through dialogue rather than through description alone so readers can evaluate cathy’s cheeky opinion about her mother’s suggestions from a third person point of view so cathy’s internal dialogue can be revealed to readers to assist them with assessing her motives