Despite the historical focus, many elements of the story are fictitious. I think that should be right
The sentence that has a correct subject-verb agreement is:
A) My cousin, along with two friends, is arriving today.
<span>Explanation: The words ‘along with, besides, as well as, not, etc.’ separates the subject from the verb. These words are not a part of the subject. These words should be ignored. A singular verb should be used if the subject singular.</span>
Twain arranges the story “Life on the Mississippi” in a biographical order.
“Life on the Mississippi” recounts the life of Mark Twain when he was a steamboat operator on the Mississippi River. The memoir also gives us a glimpse of how society lived during that era.