Correct option is A
The correct answer is (a) Arrange for a doctor’s prescription pertaining to a deficiency disease and hold a discussion around it.
The most suitable strategy to introduce the topic of deficiency diseases at the upper primary level is to arrange for a doctor's prescription pertaining to a deficiency disease and hold a discussion around it. This approach would provide a practical and real-world example of how deficiencies manifest in diseases, engaging students in a tangible way to understand the importance of nutrition and its impact on health.