Cars that travel more than 600,000 kilometers should be scrapped; some vehicles that travel more than 600,000 kilometers have design defects; some of the cars that should be scrapped are not T-brand cars; all T-brand cars do not have design defects. If the above judgment is correct, what must be true is:. ['Some T-brand cars should be scrapped.', 'Some T-brand cars should not be scrapped.', 'Cars that should be scrapped all travel more than 600,000 kilometers.', 'Some cars with design defects should be scrapped.']