Which of these is best reason an author would use an unreliable narrator

To make a story more interesting

This engages the reader. Hope this helps.

the rhetorical devices that he used in "common sense" are syntax for his sentence structure and pathos for his emotion against the british unfairly treating the "americans" and logos of what documents that what happened to the pilgrims when they had the mayflower compact and how that the british were wanting to have one religion but the compact said for any religion to be accepted.

the reason some people sacrifice their own life for another person's life could be that they are in love with them and would do anything to keep them safe a protected even if that means risking their life in the process