Answer:
Subconscious
Explanation:
A subconscious social commentary is when a writer refers to a problem that is caused by a social custom, but doesn't challenge this costume in an explicit way. In the given passage from "On Making an Agreeable Marriage" by Jane Austen, she points out a problem for Fanny, and she knows it is caused by the social customs for dating, but she doesn't say it to not challenge these customs.