Marcus is writing an essay about recent positive developments in home solar power installations. Which two sentences would best conclude his essay?
Our reliance on so-called "dirty power," which is power generated by the burning of fossil fuels such as coal or gas, is a growing concern among the worldwide community, from governmental leaders on down to the average citizen.
In the final analysis, the sharp rises in the cost of power provided by our utility companies and the projected even sharper rise in those rates in the future is an issue of great concern to many and one which governmental authorities should better address.
A prominent solar power company recently announced a revolutionary new product, a whole-house battery, which is a wall-mounted storage unit that allows one to collect power during low-use times and then use it during peak hours.
Now that whole-house batteries are available on the market, there is greater incentive than ever for homeowners to consider a solar power installation, and the closer we get to moving "off the grid," the more everyone will benefit.
Overall, the free installations offered by solar companies, tax credits and rebates from the federal government, and power credits from utility companies make going solar vastly more affordable than it used to be.

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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)