UNESCO has designated 2008 as the "Year of the Potato". The potato, commonly known as "Potato", has been called a "hidden treasure" by experts of the United Nations. The United Nations has named a year for a crop and it has only appeared once in history. It is 2003-the International Year of Rice. Why are the protagonists of this year not "corn", "apple", but the potato, which is buried in the ground, a humble little thing? Because potatoes are needed to solve global food security problems. What is the most accurate summary of this text? ['Potatoes and rice are important crops.', 'Global food security issues need attention.', 'Potatoes are mentioned at a strategic height of food security.', 'The potential huge value of potatoes needs further development.']