In December, a California Importer Contracted with a Guatemala Exporter

In December, a California Importer contracted with a Guatemala Exporter for a plane load of roses to be shipped to Los Angles from Guatemala City the first week in February. Because of a regional hail storm in January, the Exporter's usual sources of supply dried up to where he could not obtain sufficient quantities of quality roses in Guatemala, so arranged for a shipment from the Cameron Highlands in Malaysia. When the shipment arrived in Los Angles, the Importer refused it-based on the fact the roses didn't come from Guatemala. Give the legal arguments of each party.