I'm going to say that the personal tone is the sentence under answer choice: C. Hope that helps.
A. Gregor describes the difficulties of working in a factory
Answer: An essay or paper should be organized logically, flow smoothly, and "stick" together. In other words, everything in the writing should make sense to a reader. A paper should be written in generally correct standard English, with complete sentences, and be relatively error-free.
Explanation: