Concept:Assessment in social science is a tool to measure learners' understanding and progress over time.Explanation:It helps teachers track how well students grasp concepts and skills.Teachers can identify strengths and areas needing improvement.Assessments can be adapted for diverse learning backgrounds.The main purpose is to evaluate individual student progress, not the overall educational sector.Thus, assessment provides continuous feedback on learning growth.Answer:B. helps find out the progress in learners over a period of time