 Which is the best characterization of why Stinson decided he did not want to bring his people to this planet?
He touched the pencil-line scar behind his ear where the cylinder was buried, marveling at the power stored there, power to fling him from earth to this fourth planet of the Centaurian system in an instant. A gray, funnel-shaped cloud of dust stood off to his left. Weather control made cyclones and other climatic phenomena on earth practically non-existent. He was here and Earth was somewhere up there. Again Stinson felt the urge to run, or to use the cylinder to project himself somewhere else, but he said, "No!" very firmly to himself. He was here to investigate, to determine if this planet was capable of supporting life. He became so absorbed in doing this that he failed to notice how the wind devil drew closer and closer, but when he inhaled the first grains of sand, the realization of what was happening dawned with a flash of fear. These creatures were not only humanoid, but definitely human, although more slight of build than earth people. He pointed upward, described a large circle, then another smaller, and showed how Earth revolved around the sun. They had exhibited human emotions of anger, fear and, that most human of all characteristics, curiosity. But up to now the tube and the chain was the only evidence of an advanced technology, unless the ancient inscriptions in the stone wall of the pool, and the statues lining the wall were evidences. Incongruously, he thought of Benjamin back on earth, and all the others with cylinders, who might be fighting for their lives at this moment. Stinson looked at the wind devil, since it could be no one else speaking, and pointed to himself. "I am Stinson, of the planet Earth." Stinson cried angrily, "You tried to kill me!" When they arrived on this planet I attempted to explain that I was not a God, but the primitive is not deeply buried in them. These are the undesirables, the incorrigibles, the nonconformists from the sixth planet. Half a million years ago my people were as you. And this is contrary to the greatest law of all—that an entity, once in existence, can never cease to exist." "As for the webfoots," the wind devil, or Sand God, said, "I will destroy them. It has to do with what comes after physical existence, not with existence itself. The greatest law is this, that an entity, once existing, must not be harmed in any way. To do so changes the most basic structure of nature."
 He is suspicious of the moodiness of the Sand God
 He is suspicious of the moodiness of the Sand God  He doesn't want to bear the weight of being treated like a God  He does not want to have to confront his feelings for Sybtl  He is not convinced that the Sand God will let humand and the web-footed people coexist