'Irony", is the right choice. Apexxx:)
The concept which is emphasized through this literate is that neighbors are being very rude and disapproving of the mother and son in the context. The neighbors who used to be very friendly are ignoring their friendly gestures as if they do not exist or they do not know them. So, the correct answer is that <span>The narrator's neighbors are not offering their usual greetings.</span>
