Answer:
He is afraid of being infected. What horrors does the narrator witness during regular walks to his brother's house? People are dying on the streets, women shrieking and crying, and people do harm to themselves and others.
Explanation:
Answer: If you find someones DNA at a crime scene, they are guilty without a doubt.
Explanation: fingerprint evidence or dna being found isnt enough evidence to convict someone unless theres other undeniable proof.
B, handwritten letters, because the letters are probably the most credible, especially since they're a first-hand account of things that happened to your ancestors, and as WorldlyGlass45 mentioned in their answer to this question on another post, you'll most likely get the most info from the letters as well.
Well it would be
222.222
^
222.220