Final answer:
The countries of origin for "non-traditional" European immigration to the Southern Cone in South America are Italy, Spain, and Portugal.
Step-by-step explanation:
The countries of origin for "non-traditional" European immigration to the Southern Cone in South America are A. Italy, Spain, and Portugal.
According to the given information, the European Commercial Region or the Southern Cone includes Chile, Argentina, Uruguay, and parts of Brazil. This region has a dominant European ethnic population, which includes immigrants from various European countries such as Italy, Spain, and Portugal. These immigrants were attracted to the region due to economic growth and opportunities provided by fertile soils and European trade.
The waves of European immigrants that arrived in the Southern Cone region mainly consisted of Italians, Germans, Spaniards, and Portuguese settlers, among others.