We can analyze this question with the help of the given options. First of all, let's put the lines like in a poem structure in order to examine it better:
A lonely warrior,I am wounded with iron, Scarred with sword-points, sated with battle-play, Weary of weapons. I have witnessed much fighting, Much stubborn strife.
The answer is not rhyme because we don't observe a regular rhyme scheme here. Similarly, there there aren't any repetitive consonant to claim that there is an alliteration. There are two options we can choose - character and plot. Character is more suitable because we can observe a characterization of a warrior. Additionally, there is a usage of pronoun "I" which is an attribute to character. Although it is about a warrior we cannot exactly identify what kind of plot it is. We cannot justify that it is an epic poem or ballad. The correct answer is character.
