Final answer:
Social promotion is the practice of passing students to the next grade regardless of whether they have met the required standards for that grade. In the context of the question, the performance trait grade that indicates the need for development but is promotable if overall performance warrants falls under the concept of social promotion.
Step-by-step explanation:
Social promotion is the practice of passing students to the next grade regardless of whether they have met the required standards for that grade. In the context of the question, the performance trait grade that indicates the need for development but is promotable if overall performance warrants falls under the concept of social promotion. This means that if a student's overall performance is considered sufficient, they may be promoted even if they require development in specific traits or skills.
For example, if a sailor's overall performance is deemed outstanding, but they need development in a specific trait such as leadership or teamwork, they may still be considered for promotion based on their overall performance.