The only preposition in this sentence is the word of.
The dependent clause is between the subject ('The man') and the main verb ('was selling'). Hope this helps! I believe the answer is adjective option B
Explanation:
Gregor's father emphasizes how well Gregor prioritizes the important things in life like work and supporting his family. This reinforces the theme regarding isolation because it stated that Gregor doesn't do anything outside of work.
i hope this help
<span>the answer is the use of slave labor</span>
