it is not a matter of inference
the reason for Tan believing that "nonstandard English is no less valid than standard English" is related to the fact that Standard English’ was considered as a form of the English language, universal or common in the nineteenth century. By the 1930s, however, it was associated with social class and was seen by many as the language of the educated. On the contrary, speakers from lower classes in the past and today, tend to use nonstandard dialect features because they are more likely to have left education earlier, have non-professional jobs and have no need to associate themselves with a ‘prestige’ way of speaking.
“a wild, white welter of winnowing wings” is an example of an alliteration because most of the words start with the same letter; w.
A series of events develop the plot's central conflict and Suspense builds gradually as the plot progresses.
The correct answer here is the third one: Limited omniscient. We know this because a narrator who knows everything about all the characters is all knowing, or omniscient and a narrator whose knowledge is limited to one character, either major or minor, has a limited omniscient point of view.This text is a perfect example of an omniscient limited. I hope this helps