The prounoun "that" is used as a demonstrative pronoun in your sentence because it is used to demonstrate, or indicate something. In your sentence, that indicates which horse is your favorite.
Answer:
The answer is A
Explanation:
A prewriting document is for you to brainstorm or an outline so basiclly just a way to generate ideas
1. yesterday When?
2. suddenly In what manner?
3. very To what extent?
4. night When?
5. outside Where?
The answer would most likely be (D) Primordial.
However, (C) Avant-garde, is completely legit too I suppose.
Personally I would choose (D) as my answer as it seems to make the most sense.