After investigating the appearance of 260 murderers, a criminal anthropologist found that they had some common physiological characteristics, so he concluded that the murderers had a wide jaw, prominent cheekbones, and black and short hair. Which of the following is the same as the reasoning above? ['No prime number between 24 and 28.', 'Clouds cover the moon on August 15.', 'Plant seeds can increase yield after ultrasonic treatment, so corn seeds can also increase yield after ultrasonic treatment.', 'After a survey of students in a university, a conclusion is drawn that "the attitude of our students is generally better".']