Final answer:
In 2011, the top apparel exporting country to the United States was China, with imports totaling $41.5 billion, ranking it number one among the top ten apparel exporting countries.
Step-by-step explanation:
According to the percent market share of the top ten apparel exporting countries to the United States, which country ranked as number one in 2011? The answer is B) China.
As identified in the provided data, the United States imports a significant volume of textiles and apparel from various countries around the globe. Specifically, the U.S. imported $41.5 billion of textiles and apparel from China in the provided year. This figure vastly surpasses the import volume from other trading partner countries. Therefore, based on the given information, China held the number one rank in terms of apparel export to the United States in 2011.