Final answer:
The Abuelas de Plaza de Mayo is a group of Argentine mothers who fought for the rights of their missing children during the Dirty War.
Step-by-step explanation:
The correct answer is C) The Abuelas de Plaza de Mayo.
The Abuelas de Plaza de Mayo is a group of Argentine mothers whose children disappeared during the Dirty War, which was a period of state terrorism in Argentina from 1976 to 1983. The organization was formed in 1977 to search for their missing grandchildren.
The Abuelas de Plaza de Mayo has played a significant role in advocating for human rights and justice, as well as in reuniting families by identifying the stolen children who were illegally adopted during the Dirty War.