What effect does the symbol have on the meaning of the passage from "here is new york"?

the commuter is the queerest bird of all. the suburb he inhabits has no essential vitality of its own and is a mere roost where he comes at day’s end to go to sleep.

a. the symbolism of the suburbs as a “roost” expresses the safety and comfort of the commuter’s home.

b. as birds are inherently pests, the writer uses symbolism to express his view that commuters offer nothing positive to new york.

c. the symbol of commuters as birds illustrates how they come and go without ever experiencing the city.

d. by describing the commuter as a bird, the writer emphasizes the freedom of commuters who can come and go from the city as they .

yes, they are. i think.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)