The answer is D. It is restarting the thesis.
Answer:
abcdefghijklmnopqrstuvwxyz
<span>D. Arsat’s brother was holding their pursuers off with a gun.
According to the excerpt the brother wanted Arsat to continue on so he could keep the people away. He says that they do not have a gun and they'd be intimidated. He says that once he has "fired all the shots" he will catch up since he's a strong runner.
</span>
"Use an appropriate level of formality."
Questions and disagreements are allowed to happen in effective interactions. However, formality is very important for effectiveness.