B.
economic is about the economy.
political is literally what it says.
social is about the society.
i think.
The main character is the protagonist.
Answer: By the time they came, we had finished our dinner.
Came is past tense, so I would assume it would be had finished
Answer:
More plant-eating animals would survive.
Explanation:
And the population of the herbavores would grow or other predetors would suround the area
