Respuesta :
The women are wearing white headscarves because white is a symbol of Peace and the are holding pictures of their children because their children disappeared during the Dirty War.
What is the Dirty War?
The Dirty War was a battle between 1976 and 1983 where the right-wing government purged Argentina of left-wing “subversives.
Hence, the word "Peace" and "disappeared during the Dirty War" were correct.
Read more about Dirty War
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