Art b: which passage from the text best supports the answer to part a?

a
“liberated a day earlier by american soldiers, he remembers their rage at what they he will always be grateful to them for that rage, and also for their compassion.” ( paragraph 2)
b
“these failures have cast a dark shadow over humanity: two world wars, countless civil wars, the senseless chain of so much violence; so much indifference.” ( paragraph 4)
c
“during the darkest of times, inside the ghettos and death we felt abandoned, forgotten.” ( paragraph 13)
d
“have we really learned from our experiences? are we less insensitive to the plight of victims of ethnic cleansing and other forms of injustices in places near and far? ” ( paragraph 21)