Answer:
I would choose A but i don’t know the context before or after this sentence
Explanation:
Brooded means: Thinking deeply about something that makes someone unhappy
<span>Because the fire trucks arrived immediately, the house was saved.
the cause is the fire trucks arrived immediately</span>
In western dramas it's usually motive-driven characterization
You can’t use third person without saying it’s your own research , but you can say “ people conducted their own research on this topic “
