Which sentence from "lifeboat ethics" by garrett hardin best demonstrates the art of using logos?

a. but does everyone on earth have equal right to an equal share of its resources?
the spaceship metaphor can be dangerous when used by misguided idealists to
justify suicidal policies for sharing our resources through uncontrolled
immigration and foreign aid. in their enthusiastic but unrealistic generosity, they
confuse the ethics of a spaceship with those of a lifeboat.

b. this is the basic metaphor within which we must work out our solutions. lets us
now en rich the image, step by step, with substantive pressing problems of
overpopulation and hunger.

c. while this last solution clearly offers the only means of our survival, it is morally
abhorrent to many people. some say they feel guilty about their good luck.
my reply is simple: "get out and yield your place to others."

d. as of 1973, the u. s had a population of 210 million people, who were increasing
increasing by 0.8 percent per year. outside our lifeboat, let us imagine another
210 million people (say the combined populations of colombia, ecuador,
venezuela, morocco, pakistan, thailand and the philippines) who are increasing
at a rate of 3.3 percent per year.

The correct answer is D.

In this sentence, the author uses logos by providing clear and exact information about population growth both in the United States and outside of it.

He uses this infomation to convince his readers that, due to this rapid increasse, his solution, as hard and unmoral as it might seem, is the right one to deal with this global and pressing issue.

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)

about the letter or who wrote the letter