This is a topic in Research Methods of Preschool Education. The original question is: What is commonly used to study and measure children's guilt? Negative moral feelings. The protagonist in the story is mostly similar to the subject who usually does something wrong or bad. The options are A survey, B question and answer, C story continuation and D empathy test. The answer is C story continuation method.

Story continuation method is a method to study children's personality and moral development based on personality projection theory. Will provide one or several short moral stories to the subjects, stop at the critical moment when the protagonist has to make a moral choice, then ask the subjects to continue to finish the story or ask how the protagonist in the story will solve the moral problems, and finally score according to the judgment and experience pattern shown by the subjects in the later part of the story, and evaluate and classify the subjects' personality and morality accordingly.