Answer:
Flashback (B), Juxtaposition (C), Sensory Details(A).
Step-by-step explanation:
Flashback B) Something that alters time in order to show a past event or an important occurrence
Juxtaposition C) The side-by-side placement of two contrasting descriptions, ideas, characters, actions, or events in a text
Sensory details A) Imagery that appeals to the reader's sight, smell, sound, taste, or touch