How to control the display time of exam answers?

中文 There are three answer display settings in the exam settings, namely: display immediately after submitting the exam, display after submission and grading, and hide: 1. Display immediately after submitting the exam After the learner submits the exam, the answers and explanations for all question types will be displayed. 2. Display after submission and grading: After the learner submits the exam, only the content the learner has answered will be displayed, while the answers and explanations for all question types will be hidden. The scores for each question type will be displayed only after grading. 3. Hide: After a single learner submits the exam, they will not be able to see the reference answers and explanations at any time.