I think the correct answer would be option D. Expository writing never includes devices of writing such as figurative language or narrative. This type of writing is used to give information, explain and describe a certain topic so it should use simple words and is straightforward.
I believe that when cherry valance described things as being rough all over, she meant that life
Is a double sided coin, and that there’s good and bad things that plague people’s lives no matter how good they may seem to have it.
21 - discover
22 - ancient
23 - imagination
24- information
25- historians