After Hector's death, "Piteously his father groaned, and round him/lamentation spread throughout the town./most like the clamor
to be heard if Ilion's/towers, top to bottom, seethed in flames." This simile suggests that a. Priam set fire to the town. c. Priam's groan was louder than the roar of the flames. b: the body of Hector was burned in a funeral fire. d. the death of Hector meant the end of Troy.
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.
Abstract nouns are essentially nouns that can be interpreted differently by different individuals, such as beauty or maturity. Going by this definition, the abstract noun in the given sentence should be "loyalty".