ANSWER
Two different species of mice migrated to the river from different directions.
EXPLANATION
Solved scientifically in my head.
Answer: the formation of a mental image of something.
Explanation: basically you have the mental image in your head of what is being described to you.
In this poem<span>, </span>Whitman questions his own existence and the futility of life<span>. He ponders the "endless trains of the faithless," or the many people who, throughout his </span>life<span>, betray his expectations. He describes cities full of foolish people and reproaches himself for being no better than these faithless masses.</span>
<span>The answer is B - Words like "alarming" and "violence" give the excerpt a sinister tone.</span>
D To persuade the audience to use non violent means for protesting.