An example of a narrative technique is:

Foreshadowing is indeed an effective narrative technique that authors use to hint at events that will occur later in the story. This technique serves to build anticipation and tension within the narrative, allowing readers to have a deeper engagement with the plot as they try to decipher the clues provided. By subtly suggesting outcomes or developments that may come, foreshadowing enriches the reading experience, encouraging a more active participation from the audience as they piece together the hints dropped throughout the narrative.

In contrast, the other choices, while important literary devices, do not specifically function as narrative techniques in the same way. Metaphor and symbolism create deeper meanings and connections within the text, while imagery enhances sensory experience and visualization but does not guide the plot's progression as foreshadowing does.