The early 1900s were very different from today, when toys were still the delight of children everywhere. Theodore Roosevelt's Presidency marks the beginning of the "Teddy Bear". In the year 1902,toy bears were named "Teddy" after the president's nickname. The Teddy Bear became known worldwide and it was only a few years later that the Teddy Bears were mass produced. In 1913,an item called the Erector Set was invented. It was a steel,motorized toy that children could use to build models of anything. Its creator was A.C.Gilbert,a medical doctor. Charles Pajeau created a similar wooden set called Tinker Toys in the year 1914.Tinker Toys were made for younger children. Raggedy Ann dolls first came on the scene after newspaper cartoonist Johnny Gruelle reproduced the doll he made for his daughter. That was in 1915. The following year,an architect's son named John Lloyd Wright,invented Lincoln Logs,which were interlocked to make structures. Two years after Mickey Mouse was created,stuffed Mickey Mouse dolls were made by Charlotte Clark. This was the start of Disney merchandise. The yoyo became popular in the United States after Donald Duncan bought a yoyo company in 1929. The ViewMaster,a three dimensional viewer,was developed by a camera enthusiast named William Gruber. The toy became popular when Gruber licensed Disney characters to make still, 3D images from Disney movies and television programs. Finally,in 1940,model airplanes were mass produced. They started out as a way for manufacturers to sell planes to the military,but later caught on as a toy. The toys that we know and love today have had their roots from these ancient times. Thanks to all these creative man's efforts, we know otherwise what we may never know. In which aspect do the toys created by Gilbert differ from those by Charles? A) Shape B) Material used C) Themes D) Price
A:
B