Answer:
The best way to describe Twain's tone in this excerpt from "Life on the Mississippi" is:
b. casual and nostalgic.
Explanation:
Mark Twain was filled with homecoming feelings that he longed endlessly to return to Hannibal, to his root, and to his boyhood friends to enjoy life on the Mississippi. Â When he was a young boy growing up, he had watched steamboats traversing the river with envy and unsatisfied desire. Â This desire propelled him to seek a seaman career to enable him work on the boats. Â First published in 1883, "Life on the Mississippi" chronicled Mark Twain's experiences as a steamboat pilot on the Mississippi River.