Respuesta :
C. irony because he says he will be honest with everyone even if he hurts their feelings and he ends up doing so
The answer to your question would be that the literary device used by R. K Narayan in this passage of "Like the Sun" is irony.
Irony is a literary device in which words are used in such a way that their intended meaning differs from the actual meaning of the words. In addition to this, it may also refer to a situation that ends up in quite different way than what is generally expected. In this case, Sekhar decides to be honest with everyone but it is likely that he didn't consider that this possibility would also include his boss.