A adjective because "The true king of the beasts is the elephant" is describing the elephant
I would say that the answer should be "Helen's challenges with the frustration of learning to communicate".as a blind-deaf person and the excellent analogy with being shrouded in fog and not having how to determine where she was headed but love giving her the light to find her way and eventually get a degree at university.
Answer:
He enjoys watching the violent men kill one another. He admires the powerful weapons and strong men.
Explanation:
The answer for that part of speech is preposition