In my opinion, the correct answer is A. simile. You can see that in the construction "four men (...) like burglars". A simile is actually a comparison that always follows this formula: A is like B. It usually uses the conjunctions (like/as), but sometimes, in its shorter form, it doesn't even need them. We don't see a metaphor here - every word is used in its literal meaning. We don't see an irony either. As for syntax, it is not even a literary device.
He tricks Fortunato into thinking he has Amontillado
I’m pretty sure it’s D. I apologize in advance if it’s wrong.
The answer is C inspecting tolhe power cord
The non-fiction technique is used by the action of narrating an actual event that replaces any kind of physical descriptions of his brother’s demeanor. He prefers the actual event to do the storytelling itself, including only a couple of lines commenting it and allowing the reader to witness the narrative reenactment of such event. The fact that the event is presented to the reader exactly as it occurred, along with the affixed interpretation of his brother’s motives provide a narrative mental and somewhat emotional picture of who his brother was as a person by allowing the reader to appreciate his behavior during a particular situation and thus favoring the reader’s identification with the observant, participant narrator that is the author.