What is a central idea of this passage?

a.) only those who have photographic memories can be effective river pilots.
b.) the narrator traveled extensively.
c.) river pilots need to learn to remain calm in all circumstances.
d.) the narrator endured the most embarrassing experience of his life.

(excerpt from "a cub pilot"
from life on the mississippi
by mark twain)

intonation based on rhythm.

a simile is first defined as a type of speech that uses one thing or phrase with comparisons to things of an unrelated kind, often in order to make a more vivacious description. so of the phrases above, only the last one (i swear she cast a shadow white as stone) would be considered a simile, as a shadow white as stone takes two unrelated things and uses them in an interesting way.

explanation:

mark brainliest and have a great day!