Answer:
Paragraph 3 establishes evidence of what was seen in the release of concentration camps.
Explanation:
Paragraph 3 presents the account of Bill Barrett, a journalist who was present at the moment of liberation from concentration camps by the American army. In his account, we can know how the prisoners of Nazi Germany were in a situation of suffering and hunger, even becoming skeletal.
This account contributes to the development of the villages presented in the text, because it shows that even if they were wolfed, the prisoners were still in danger.