The war in Sudan was between the rebels and the government. So the second option.
An adverb is a word or a group of words that modifies an adjective, a verb or even an adverb. It generally answers the questions when? how? where? how much? and at what extent? Typically, it is easy to spot an adverb in the sentence because it ends in a suffix -ly. In the given sentence above, the adverb is the word "briefly" which modifies the verb "paused".
I had found this answer off of another question so the credit does not really go to me but the person that wrote this. Btw if you actually wrote this question down you could’ve found a answer without asking a question. Hope this helps
Through a vent, hope this helped