Final answer:
LK would most likely be at risk of iron deficiency. This is not directly indicated by the initials 'LK' but by exclusion of other nutrients mentioned and common associations with nutrient deficiencies.Option C is the correct answer.
Step-by-step explanation:
LK would most likely be at risk of iron deficiency, as iron is a critical nutrient for preventing anemia and maintaining healthy blood cells. Comparing this to the options provided, neither vitamin B6, niacin, potassium, nor phosphorus are notably indicated by the initials 'LK'. Vitamin B6 deficiency is rare and its symptoms include irritability and depression. Niacin is essential for metabolic processes and its deficiency leads to pellagra.
Potassium is critical for cellular function and its deficiency can result in excess sodium disrupting membrane components. Phosphorus, while essential, is typically plentiful in a balanced diet and not commonly deficient.
Vitamin C is a water-soluble vitamin, and although it is essential for immune function and skin health, it does not match the initials 'LK'. Bone-related issues such as Rickets are connected with a deficiency in vitamin D, not the nutrients listed in the initial question. Therefore, iron is the most likely nutrient deficiency for LK considering the common terminology and known risk factors associated with iron deficiency anemia.