Which sentence from exploring the titanic best indicates the author’s enthusiastic tone at the end of the passage?

now, finally, i went to my bunk to get some sleep.
when i awoke, it was nighttime, and the good ship knorr was steaming quietly and steadily to our home.
they had paid a big price over the years during my long months away from home, but they’d never once complained.
as we came into port, i couldn’t believe my eyes.

The sentence that indicates the author's enthusiastic tone at the end of the passage is "As we came into port, I couldn’t believe my eyes."

The expression "I couldn't believe my eyes" means that the speaker was really surprised and/or amazed, which conveys an enthusiastic tone.

In literature, tone refers to the attitude of a writer toward a subject or an audience. It is generally conveyed through the choice of words, or the viewpoint of a writer on a particular subject.

D

Explanation:

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".