The correct answers are 1. Indefinite and 2. Antecedent. The complete sentence would be, The pronouns "some, none, and all" are indefinite pronouns. For each of these pronouns, number (singular or plural) is determined by the antecedent. Indefinite pronouns are used when you do not refer to a person, thing or amount in particular.
A) The urbanization of the United Stats quickened due to technology improvements.
-This whole paragraph is on the subject of how technology quickly urbanized the United States. All of the other answers are factors that caused this to happen.
