Read the article and select the best answer. Article: On this vivid planet, it appears color1ful with many world famous buildings. Among these largest artificial articles in the world, many were designed by the same architect--Ieoh Ming Pei. Pei, the 1983 Laureate of the Pritzker, Architecture Prize, is a founding partner of I. M. Pei & Partners based in New York City. He was born in China in 1917, the son of a banker. He came to the United States in 1935 to study architecture at the Massachusetts Institute of Technology and the Harvard Graduate School of Design (M. Arch. 1946). From 1945 to 1948, Pei taught at Harvard. In 1948 he accepted the newly created post of director of Architecture at Webb & Knapp, Inc., and this association resulted in major architectural and planning projects in big cities. In 1958, he formed the partnership of I. M. Pei & Associates, which became I. M. Pei & Partners in 1966. The partnership received the 1968 Architectural Firm Award of The American Institute of Architects. Pei has designed over forty projects in the world, twenty of which have been award winners. His outstanding projects have included the East Building of the National Gallery of Art, Washington, D.C.; the John Fitzgerald Kennedy Library near Boston; the Fragrant Hill Hotel near Beijing, China. Pei is now a member of the National Council on the Arts, and before served on the National Council on the Humanities. He is a Fellow of the American Institute of Architects, a member of the Royal Institute of British Architects, and an elected member of the American Academy of Arts and Letters. He is a member of the Corporation of the Massachusetts Institute of Technology. As a student, he was awarded the MIT Traveling Fellowship, at Harvard. He later won a lot of honors. In 1982, the deans of the architectural schools of America chose I. M. Pei as the best designer of significant non-residential structures. Question: When was I. M. Pei chosen as the best designer of significant non-residential structures? Options: A: In 1983. B: In 1982. C: In 1968. D: In 1948.
A:
B