This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Pediatrics
Which of the following is an age-dependent index? 
Select and explain. 
A. Kanawati and Mclaren index, B. Jellife ratio, C. Rao and Singh index, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: All of the indices listed, namely Kanawati and Mclaren index, Jellife ratio, and Rao and Singh index , are age-independent indices Age-independent indices: Kanawati and Mclaren Index: Mid-arm circumference/Head circumference Jellife Ratio: Head circumference/Chest circumference Rao and Singh index: Weight(Kg) * 100/height2 (cm) Dugdale Index: Weight(Kg)/height1.6 (cm) Ref: Ghai Essentials Pediatrics 8th edition pgno: 97