The authorial reticence used in the narration of the story allows the narrator to exaggerate makes the reader more likely to believe the story holds the plot together hides the symbolism

The correct option is the first one, allows the narrator to exaggerate.

Explanation:

Authorial reticence represents one of the characteristics of the style of fiction known as Magical realism, or marvelous realism. It is defined as the deliberate withholding of explanations about the fictitious events.

When such authorial reticence is used in a story the narrator does not provide explanation whatsoever about any fantastic or extraordinary events that may have occurred in the story. In other words, magical events are presented as ordinary and thus, the reader accepts them as normal.

Bearing in mind the described above, it could be said that the authorial reticence used in the narration of the story allows the narrator to exaggerate.