“That” is used in that first sentence as a demonstrative pronoun rather than a relative pronoun. A demonstrative pronoun typically points to the subject or object being described, its location in place, or its occurrence in time. It can be the subject or a direct or indirect object, object of the preposition, prepositional complement, or object complement of the sentence. The demonstrative pronoun “this”— “these is its “plural”—is the person, thing, or idea that’s present or near in place, time, or thought or that has just been mentioned. As to the relative pronoun, it’s a type of pronoun that often introduces dependent or relative clauses in sentences; it can stand alone as the subject or object of a sentence.

Source: Manila Times August 26, 2020 17:15 UTC