C. The repeated sputter of the s sound summons up the sound of the mother exclaiming helplessly about the letter.
D. The similar sounds of the lines help the lines hold together as a unit.
Explanation:
An alliteration refers to the repetition of the same initial letter in a sequence of words. This occurrence is present in the excerpt given the vigorous use of the letter 's' between phrases.
The sound of the letter 's' is one that stands out among others in pronunciation, which is indicative of a speaker intending to draw attention - or in this case, a mother exclaiming and making emphasis about the letter she just read.
The use of this alliteration also helps in creating a pattern unique to a specific set of words, making the phrases in the excerpt sound cohesive in unity.
