This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
Not included in the type-I nutrient element 
Select and explain. 
A. Mg, B. Ca, C. Zn, D. K
C: Zn
Answer: C: Zn 
Explanation: Type 1 nutrients Type 2 nutrients OAll VitaminsOMost Trace Elements OIron OIodineOCopper OSeleniumOCalciumONitrogenOSulphurOEssential Amino Acids OSodiumOMagnesiumOPhosphorusOZinc OWater (Refer: OP Ghai's Essential of paediatrics, 8thedition, pg no: 78)