Alessandro is writing a narrative about a family whose home is destroyed in the Great Fire of 1901 in Jacksonville, Florida. In the exposition, before the fire occurs, Alessandro incorporates the following lines in his narrative:

My plans for the weekend always seemed to go up in smoke.
Lately, my mind was grey—like a heavy layer of ash had taken over my brain.
The tensions in my household lately have been too hot too handle.

Which narrative technique did Alessandro use?

Foreshadowing
Flashback
Dialogue
Juxtaposition

The narrative technique used by Alessandro is foreshadowing.