I believe that the best answer to this will be (IRONY).
By definition, irony is a state of affairs or event that seems deliberately contrary to what one expects and is often amusing. Here, its ironic that on the same day that Sekhar decides to be brutally honest, his boss asks him to critique his music.
A. center
Center mostly closely resembles the meaning of the Spanish word "centro". Spanish is most commonly spoken language worldwide after English. Both the languages share some similarities; both use the Roman alphabet and share 20-40% related words. Spanish and English also have similar syntactic features and contractions.Both also have similar sentence structures (Subject+ Verb + Object).
Allusion, an expression designed to call something to mind without mentioning it explicitly; an indirect or passing reference.
Cannot answer the second one hince i do not have the correct info.
