Answer:
C- the author's purpose for writing
Explanation:
In many of Franz Kafka's stories, he utilizes the theme of (C) Alienation.
He talks about alienation from society, from others around us and even from our true self. He sees society as something which alienates us from our own selves and does not serve as a sustenance to nourish our true identities.
In his viewpoint, the ghost represents the one who is justified as an odd man. "Ways" that he think are the discrimination, unfair justification, ignorance to the truth, and spreading fake news.
The highest one you can get is a Doctoral degree. While it is not needed to practice, you need it to get a license.