Concept:Assessment can be formative (for learning) or summative (of learning). They are not strictly separate; one can serve the purpose of the other in certain contexts.Explanation:Formative assessment is ongoing and aims to improve learning. Summative assessment evaluates learning at the end. However, a summative test can give feedback for improvement (formative use). Similarly, formative tasks can be used to assign grades (summative use). For example, periodic tests identify weak areas and guide instruction. Thus, the boundaries are flexible. Option A correctly states that formative and summative assessments can sometimes be interchangeable. Option B is false because summative assessment is not continuous; it is terminal. Option C is false because the major objective of formative assessment is to improve learning, not to grade. Option D is false because formative assessment does not summarise development; that is summative.Answer:Option A: The formative assessment can sometimes be summative assessment and vice versa.