Students in key middle schools generally perform better than those in non-key middle schools. Li Ming was first in their class at university, so he attended high school in key high schools. Which of the following reasoning methods is most similar to the above sentence? ['If you work hard, you can usually get good results. Lao Li has been laid off recently, so he has not worked hard.', 'Psychological education in childhood is very important. Xiao Liao is the person with the best psychological quality in the company, so he must have received good psychological education in childhood.', "If you master a certain learning method, you can get good grades. Xiao Li's grades are excellent, so he will learn very well.", 'Southerners are generally whiter than northerners, Xiaoyan is the whitest in their dormitory, so she must be a southerner.']