<span>3.A treaty had been signed, but it took weeks for the information to reach the soldiers.</span>
Answer: Alliteration
Alliteration refers to the conspicuous repetition of consonant sounds at the beginning of successive or nearby words in a sentence. It can sometimes be called an initial rhyme.
In this case, the repetition of the sound "s" in words that are close to each other (ship, safe, sound) are an example of alliteration.