Answer:
It can be any so all of the above
Explanation:
I think the author chose to start the book 19 years before the main events of the story so the reader could absorb things. The author technically wanted the reader(s) to understand something before reading the real story.
I think the complete question would be;
Which technique is the author using in this passage to reveal the character’s traits?
passage from the grapes of wrath muley’s face was smooth and unwrinkled, but it wore the hateful look of a bad child. the mouth was held tight and small, the little eyes half scowling, half fretful.
is:
<em>the Imagery used in describing the details about the face, and the metaphor used in comparing it to a child's face. These details tell the reader about the character's personality.</em>