Final answer:
2) Zinc should be supplemented in a child with chronic diarrhea as it is crucial for immune function, protein synthesis, and cell growth. Copper is important for iron transport and absorption.
Step-by-step explanation:
Trace Element Supplementation in Chronic Diarrhea
In the case of a child with chronic diarrhea, the trace element that should be supplemented is zinc. Zinc is essential for the immune system, protein synthesis, tissue growth, and cell growth. Chronic diarrhea can cause a significant loss of nutrients, including zinc, which can lead to a weakened immune system and further complications. In contrast, copper, another important trace mineral, is related to the absorption and transport of iron within the body, with deficiency potentially leading to iron accumulation in tissues.
Zinc supplementation is often recommended in the management of chronic diarrhea to help restore the body's ability to fight infection and recover from the condition more effectively.