Which vs. That: Correct Usage | Merriam-Webster
https://www.merriam-webster.com/grammar/when-to-use-that-and-which
WEBWhat to Know. In today's usage which and that are both used to introduce restrictive clauses, those which cannot be removed from the context of the sentence, and which is also used to introduce nonrestrictive clauses, those which provide additional information but can be removed without the sentence falling apart.
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