Brainliest! read the excerpt from the code book. despite the enormous strength of rsa and other modern ciphers, cryptanalysts are still able to play a valuable role in intelligence gathering. their success is demonstrated by the fact that cryptanalysts are in greater demand than ever before—the nsa is still the world's largest employer of mathematicians. what is the central idea of this paragraph? a. many math experts work for the national security agency. b. the rsa computer system makes our country more secure. c. skilled people are still important national security workers. d. computers are better than people at keeping the nation safe.

C) Skilled people are still important national security workers.

Explanation: In the given excerpt from "The Code Book" we can see the development of the claim that cryptanalyst are still able to play a role in intelligence gathering, and that this is demonstrated bay the fact that they are in greated demand than ever before and that the NSA is the largest employer of mathematicians, based on this information, we can see that the central idea of the paragraph is that skilled people are still important national security workers.

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)