Answer:
An omniscient narrator is a narrator who knows what's happening all the time in the story. This type of narrator can tell you what every single character is feeling, thinking, and doing. There isn't any limitation to this type narration. This doesn't mean the narrator will reveal everything to you at the exact time it is happening. For the sake of the story, there could be pieces exempt that will be placed in at the right time. This could work well in perhaps a mystery or drama.
In the short story "The Gift of the Magi" we can clearly see it is told from an omniscient narrator. We are told how both the main characters are feeling throughout the story. We know simultaneously that both the characters are making sacrificing materialistic items of their own just to be able to show each other love through Christmas gifts. The whole story would be totally different if it were told from a first person perspective from one of the main characters.
Step-by-step explanation: