Final answer:
A first-person narrator, such as the one in 'The Stranger at Table Five' by T.A. Westacott, may offer a limited and biased perspective, making them potentially unreliable unlike an omniscient narrator who would provide a more objective viewpoint.
Step-by-step explanation:
When deciding if the narrator in 'The Stranger at Table Five' by T.A. Westacott is reliable, it is important to understand the role of point of view in storytelling. Generally, narrators can be unreliable when they are characters within the story, due to potential biases or incomplete information.
First-person narrators, like the one in this story who tells events from their own perspective, may color the narrative with their personal views and only have access to a limited set of information. This contrasts with an omniscient narrator, who would have a more objective and all-knowing perspective. Thus, while a first-person narrator provides an intimate and personal account which can be engaging, it is not necessarily a trustworthy account of events.