 What is the most likely reason for the junior achievement group's shared characteristics?
SCHOENHERR "What would you think," I asked Marjorie over supper, "if I should undertake to lead a junior achievement group this summer?" "Why, Donald," she said, "it could be quite interesting, if I understand what a junior achievement group is. It's a privilege which I'm sure many educators must envy, teaching in Ridgeville, for our new school is a fine one, and our academic standards are high. "It has the purpose," I told her, "of teaching the members something about commerce and industry. Some groups have built up tidy little bank accounts which are available for later educational expenses." Marjorie put back her head and laughed, and I was forced to join her, for we both recognize that my understanding and "feel" for commercial matters—if I may use that expression—is almost nonexistent. When Ridgeville moved to its present site, so, of course, did we, which meant starting mortgage payments all over again. The three who were sitting to my left were the ones who had proposed the group in the first place. "The Miller boy and Mary McCready," he had said, "have exceptionally high IQ's—around one forty or one fifty. The junior achievement idea has sparked their imaginations. If we should keep the achievement group going for several summers, it might be possible later on to carry out a safe synthesis of some sort. "Some," said Hilary, "and I've got a home laboratory." I'd forgotten all about organization, and that, according to all the articles I had perused, is most important to such groups. It's standard practice for every member of the group to be a company officer. On the other hand, they pondered at some length about a name for the organization, without reaching any conclusions, so we returned to the problem of what to make. Most of them were impractical, of course, for a group of children to attempt, but several of them appeared quite attractive. He thought there should be two colors in the same bottle—orange for morning and blue for night, the blue ones designed to leave the mouth alkaline at bed time. These latter ideas had made unknowing use of some basic physics, and I'm afraid I relapsed for a few minutes into the role of teacher and told them a little bit about the laws of radiation and absorption of heat. "My," said Marjorie, "they're really smart boys and girls.
 Their parents are all members of the Ridgeville Commission
 They have experienced expected and unanticipated consequences of nuclear fallout  Their parents are all members of the Ridgeville Commission  They are all actually androids that have been programmed by scientists of the Ridgeville Commission  They have been meeting secretly for years before they came together under the guise of the junior achievement group