Answer:
A- alliteration
Explanation:
An alliteration has an sound at the beginning of the words that repeats, which would be the 'f' sound in this case, as it is in the beginning of every word.
The poem "The Unicorn" is a ballad.
Hope this helped
I personally am not 100% sure but my guess would be SAID as it is the only word showing an action.
They’re intrusive thoughts and toatations