This test is completly anonymous, no data will be saved. Your answers will be checked and you will receive your result when you click the submit button. Please try the first round quickly without any help. The goal is to demonstrate that you can easily get confused without some help from a good calculus, unless you are very experienced. Some animals are not dachshunds c.
Some dogs are mean b.
Some A that are D are C that are B b. Some C are not D c. Some B are not C d. D b. Some D are not A c. All A that are not D are B that are not C b.