<span>by shouting out to him as he rides up the road</span>
I think you can use your own experiences to better understand characters, events, and ideas.
Answer:
D
Explanation: Petrarch's native language was Italian.
"Work ethos" is a compound expression built on the greek word "ethos" (referring to an idea of "habit" that often is ascribed to one's personal/moral tendencies).
With the adjective "work" preceding ethos, the expression refers to a person's work ethic (we can see how "ethic" comes from "ethos" visually in the spelling, too).
"Work ethos" is best understood by the more common (and synonymous) expression, "work ethic."