Most dogs take longer than four weeks to be housebroken if they have been previously spoiled by their owners. A large proportion of dogs are not properly trained. Most dogs that are housebroken in three weeks have been properly trained. A large proportion of properly trained dogs have been previously spoiled by their owners.
Almost all dogs that are properly trained are housebroken in three weeks. In fact, it only takes more than three weeks to housebreak properly trained dogs if the dogs have been previously spoiled by their owners. In general, however, most dogs take more than three weeks to housebreak.
If all the statements above are true, which of the following must also be true?