Skimmed over the text, and or reading it quickly
“'This Has Always Been Our Active Shooter Drill' is a poem that comments on the dissonance between the active shooter drills children all over America are forced to carry out in the event of a school shooter and the often futile drill that black parents execute with their children
Answer:
its effective causs its speaking on another person and he but details behind it
moral principles that govern a person's behavior or the conducting of an activity.
So B,
Hoped I helped :)