Answer:
The best option is letter A) He has a strong work ethic.
Step-by-step explanation:
From this excerpt of "Homesick Blues" we may reach a few conclusions about the narrator's grandfather. He is a very straightforward man whose values are deeply rooted. He clearly has a strong work ethic as we could expect from a person who was once part of the Army and who lives on a farm. He probably understands that obligations should come first, always. From his despise of city people, we can tell he believes them to be lazy and unskilled while farm people are hard-workers:
"According to Grandpa, he could always pick out the city boy from a group of farm boys because the city boy would be the one in the way while the farm boys did the work."