The last one DBEAFC hope it help
Keller states her main idea in the first paragraph and then uses a chronological recollection to support the main idea.
It seems that you have already filled the correct pronoun in the blank provided. Yes, the correct answer to complete this sentence is the pronoun "this". The pronoun "this" is an example of a demonstrative pronoun. Other demonstrative pronouns also include these, those, and that. Hope this answer helps.
