Which of the following sentences use correct end punctuation?
(a)-does this system track all parts ordering for the c45 model.
(b)-fire him. will you file these invoices?
(c)-when he became coo, ninheh asked to have his diploma from carnegie mellon placed next to his picture in the hallway.
(d)-our workgroup is going to lunch with the division manager next monday, aren’t we?

The main themes of the play are: fate and free will with the inevitability of oracular predictions is a theme that often occurs in greek tragedies the conflict between the individual and the state similar to that in sophocles’ “antigone” and   people’s willingness to ignore painful truths both oedipus and jocasta clutch at unlikely details in order to avoiding facing up to the inceasingly apparent truth and sight and blindness the irony that the blind seer tiresius can actually “see” more clearly than the supposedly clear-eyed oedipus, who is in reality blind to the truth about his origins and his inadvertent crimes.