Question: SS Cap Polonio's destination port was the leading transshipment point for foreign trade of which country in South America?

Context paragraphs:
Indian Institute of Foreign Trade: The Indian Institute of Foreign Trade (IIFT) is an autonomous public business school established in 1963 by the Government of India (Ministry of Commerce and Industry) to help professionalize the country's foreign trade management and increase exports by developing human resources; generating, analysing and disseminating data; and conducting research.

Digital Trade Hub of Azerbaijan: Digital Trade Hub (Azerbaijani – "Rəqəmsal Ticarət Qovşağı") is a public platform developed by Government of Azerbaijan to contribute country's development in the field of foreign trade and entrepreneurship.  Digital trade hubs are a new experience of commercing industry introduced by several developed countries like the United Kingdom (Great.gov.uk), South Korea (U-trade Hub) and China (Paperless Trading Bridge and E-Port) which considers this system as a new tool to benefit from advantages of worldwide e-trade.  Hong Kong (Trade Single Window) is also expected to join these states with its Trade Single Window until 2018.  Hubs are based on 'single window concept' as an electronic platform ensuring information about local manufacturers, for example product line, product mix, quality of products, stockpile volumes, etc. and a market searchable export directory to match businesses over the world.  These hubs operate as a single digital point for trade and investment, connects local businesses with foreign customers and capital investors.

Port of Buenos Aires: The Port of Buenos Aires (Spanish: "Puerto de Buenos Aires" ) is the principal maritime port in Argentina.  Operated by the "Administración General de Puertos" (General Ports Administration), a state enterprise, it is the leading transshipment point for the foreign trade of Argentina.

South Australian Railways East-West Stock: This article outlines the history of the 24 Corten steel vehicles with corrugated sides, constructed by the South Australian Railways and primarily used on the East-West Express from Adelaide to Port Pirie.  The South Australian Railways broad gauge system had been extended north in 1937 to meet a southern extension from Port Augusta on the Commonwealth Railways' standard gauge system, creating Port Pirie as a break-of-gauge and transshipment point.  To encourage passengers to use the line despite the inconvenience of changing trains, in 1947 the Cafeteria Car was constructed and used on the services to and from Adelaide, in conjunction with the mid-1930s Steel carriage fleet.  In 1964 the first airconditioned sitting cars entered regular service on the East-West Express, and construction of those continued through to 1967 with a total of nine sitting cars and fourteen vans.

Knik Site: The Knik Site, also known as the Old Knik Townsite, is the location in Matanuska-Susitna Borough, Alaska that was once home to the largest settlement on Cook Inlet.  The only surviving remnants of the community are a former log roadhouse, now a museum operated by the Wasilla-Knik Historical Society, and a log cabin.  The Knik area had long been a meeting point of Native Alaskans, and in 1898 it became the principal community on Cook Inlet from which goods were shipped into the interior.  In 1916 the Alaska Railroad reached the site of present-day Anchorage, bypassing Knik and leading to Anchorage's growth.  When the railroad reached Wasilla, Knik lost all importance as a transshipment point, and its buildings were either abandoned or moved to one of the other communities.  Knik is located about 13 mi southwest of Wasilla.

Roma Historic District: The Roma Historic District in Roma, Texas preserves an intact example of a border town in the lower Rio Grande valley.  The town was an important port and transshipment point on the Rio Grande from 1829 to the 1880s.

Port of Montreal: The Port of Montreal (French: "Port de Montréal" ) is a port and transshipment point on the St. Lawrence River in Montreal, Quebec, Canada.  On the Saint Lawrence Seaway 1,600 kilometres inland from the Atlantic Ocean, it is on the shortest direct route from Europe and the Mediterranean to North America.  It is an international container port that services Toronto and the rest of Central Canada, the U.S. Midwest, and the U.S. Northeast.

Cape Verdean organized crime: Cape Verdean organized crime refers to the various criminal organizations that are active in Cape Verdean diaspora communities.  The Cape Verdean Islands themselves are not main centres for criminal activities, but Cape Verde's increased importance as a transshipment point in the West African cocaine trade and the existence of sizeable Cape Verdean communities in New England, the Dutch port city of Rotterdam as well as in several cities in Portugal, France and Switzerland led to the formation of criminal gangs in the community active in the international drug trade supplemented with other criminal activities.  Cape Verdean organized crime primarily comes in the form of street gangs, with varying levels of organization and sophistication.

SS Cap Polonio: SS "Cap Polonio" was a German  GRT ocean liner that was launched in 1914 and scrapped in 1935.  She worked the Hamburg Südamerikanische Dampfschifffahrtsgesellschaft ("Hamburg South America Steamship Company") route between Hamburg in Germany and Buenos Aires in Argentina.  She was named after Cabo Polonio in Uruguay.

Foreign relations of Saint Kitts and Nevis: Saint Kitts and Nevis has no major international disputes.  Its status as a transshipment point for South American drugs destined for the United States and Europe has caused some tension with foreign countries.

Supporting paragraphs: SS Cap Polonio Port of Buenos Aires
Answer: Argentina