Like many other five-year-olds, Jeanie Low of Houston, Texas, uses a stool to reach the bathroom sink. However, the plastic step-stool she had at home was not stable and cluttered up the small bathroom by her whole family. After learning of an invention contest held by her school that year, Jeanie decided to enter the contest by creating a stool that would be permanent in the bathroom and could be kept out of the way when not in use.
        Jeanie decided to make a stool attached to the bathroom cabinet under the sink. She cut a piece of wood into two pieces. Using metal hinges, Jeanie attach one piece of the wood to the front of the cabinet door, and the second piece to the first. This created a convenient and strong platform for any person too short to reach the sink. When not in use, the hinges allowed the two pieces of wood to fold back up tightly against the cabinet, where they were held in place by magnets. Jeanie called her invention the “Kiddie Stool.”
         Jeanie’s Kiddie Stool won first prize in her school’s contest. Two years later, it was awarded first prize again at Houston first annual Invention Fair. As a result, Jeanie was invited to make public appearances with her Kiddie Stool on TV and in newspapers. Many people found the story of the Kiddie Stool inspiring because it showed that with imagination, anyone can be an inventor.
【題組】46. Why did Jeanie Low invent the Kiddie Stool, according to the passage?
(A) She was invited to enter an invention contest held by her school.
(B) She did not think that plastic stools were tall enough for her.
(C) Many other five-year-olds find it difficult to reach the bathroom sink.
(D)The stool in her bathroom was not firm and often got in the way.