Test analysis: this question examines the ability to obtain material information. According to the information in the stem of the question, "In the Republic of China 15 years, the undergraduate tuition fee was 14 yuan per semester, and the tuition fee could not buy 300 kilograms of rice." "The tuition fee for 20 years in the Republic of China was 16 yuan per semester, which was about 102 Jin of rice according to the price at that time." Items a, b and c do not meet the meaning of the question, and are excluded.