An example would be the great mistakes he's made
It’s from a Scottish and English surname which originally indicated a person from a place known as Ross ( such as the region of Ross in northern Scotland ), derived from Gaelic ros meaning “promontory, headland”
"Isn't" is the best option from the list in terms of completing these sentence. This is primarily because "isn't" is a contraction of the two words "is" and "not.
The correctly formatted in-text citation would be: Odysseus's men "bent steady to the oars" (Homer 79).