What is true of Late MIng China? Group of answer choices Domestic trade flourished thanks to the reopening and maintenance of the Grand Canal. Examples of regional specialization include the production of cotton in the lower Yangtze River area and rice in the upper Yangtze River region, The abacus, a device for speedy counting, was widely used. Foreign trade included luxury items from Japan, turkeys and tobacco from the Americas and sea slugs from Australia