The correct answer would be D, 'sprang', because the conjugation of the verb to spring goes: spring - sprang - sprung; it is an irregular verb, so springed and spranged are not options. In be, past perfect tense is unnecessary, so D is correct.
Piteously means pitiful, so it is probably not C, I have not read the story but it doesn't seem like Priam (the father?) would set fire to the town. so i would say D, the death of hector meant the end of troy.
