Explanation:

- "None" is the word in question from the sentence given: "None of these cars is in use."

- Option 1: Reflexive Pronoun

- Reflexive pronouns are words like myself, yourself, itself, etc.

- They refer back to the subject.

- Option 2: Demonstrative Pronoun

- Demonstrative pronouns include this, that, these, and those.

- They point to specific things or people in relation to the speaker’s position.

- Option 3: Distributive Pronoun

- Distributive pronouns refer to members of a group separately rather than collectively.

- Examples include each, every, either, and neither.

- Option 4: Indefinite Pronoun

- Indefinite pronouns refer to people or things without specifying which ones.

- Examples are someone, anything, and none.

- "None" is an indefinite pronoun because it refers to an unspecified quantity of things.

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