Question

When Aunt Alexandra speaks of people being "trash," she's referring to _____.

their appearance
the quality of their character
their lineage
their manners

Answer 1

The right answer is "their lineage "

For Aunt Alexandra, people who are not descendants of noble families are garbage, do not deserve their consideration, belong are inferior and therefore marginalized and ignored by her. Her opinion by those of noble families is totally the opposite; they deserve all their attention and respect, because they are superior to all, according to her concept.

Answer 2

When Aunt Alexandra speaks of people being "trash", she is referring to their lineage.
Those who do not come from noble families are considered to be trash according to Aunt Alexandra.