参考答案

正确答案：D
解析：细节题。根据第一段第二句：It was in 1945 that Ruth and Elliot Handler joined with their close friend Harold Mattson to form. a company that would be known for the most famous and successful doll ever created．(在1945年露丝和埃利奥特·汉德乐和他们的好朋友Horold Mattson一块建立了这个公司, 而公司因曾经制造过的最有名的、最成功的玩偶而出名)可以得知Harold Mattson, Ruth and Ellion Handler共同拥有Mattel玩具公司。