Based the excerpt which is the most reasonable plot prediction

Based on the excerpt, the most reasonable plot prediction would be 1. Huck and his father will engage in an altercation.
You can see in the excerpt that Huck's father is an uneducated criminal who doesn't want anything good for his son. He hates the fact that Huck goes to school, can read, and is well-fed and loved, and he wants him to share his criminal life with him. Huck doesn't want that initially, so obviously this excerpt is going to end in a fight. The word altercation means - a noisy argument.