My last answer was deleted for being pointless, but I had to add more letters for the correct, succinct answer to be published. The right answer is "a sentence".
If you are working on a research project in which you must present a short documentary film about the history of your family, the source that would be considered most credible for this project is hand-written letters from your great-great grandmother about her immigration.
You will get the most information from her letters.
Answer:
Gregor is disgusted.
Explanation:
He is disgusted with the way he looks - or he thinks he looks.
