Answer:
The correct answers are b) and d) because only in these two options can you see the same sound present in several words, and that is the definition of alliteration. For instance:
b) And start their silent swinging, one by one.
d) Black reapers with the sound of steel on stones.
As it happens with the presence of the "s" sound in these words, the objective of alliteration is to highlight the words that possess the repetitive sound to enhance their meaning.
B. The character have the biggest impact because their actions can change the course of where the story is going such as in my example, you have a boy who is running for school president. The boy then gets into a fight and is suspended, he can no longer run for president at his school as a punishment for getting into the fight. His action of fighting changed the story's course.
I would go with the second option; i am a very loyal and honorable man unless the context states otherwise