Hey! I hope you are doing okay, and here is my answer with my own words, all I hope is you turn my words into your own :)
Illustration is a very important text feature because it provides an imagery to the reader. Illustration is what makes a story more interesting. It provides a base for the imagination the reader can create in their mind.
Honestly I hope this is what the question meant. Good luck!
They often spoke in Free Verse
Did you try looking it up on the internet?
It could not be alliteration, since the words should start with the same letter in the same line.
it could be repetition since 'no' is beong repeated.
it could not be assonance, since the vowels are not being repeated with the same sound.
it could not be rhyme, because the words dont sound the same.
so (b) it is.