In the last two sentences of text 7A2-I, the word
- A “breakthroughs”, in “these technological breakthroughs”, is a word formed by coinage.
- B “that”, in “that were uniquely theirs”, is a demonstrative pronoun.
- C “which”, in “which offered access” is a relative pronoun.
- D “itself”, in “the foundations of thought itself” is a reflexive pronoun referring to “foundations”.
- E “these”, in “these technological breakthroughs”, works as a quantifier to indicate a following plural.