A 42-Year-Old Male Is Brought to the ER Due to Found

A 42-year-old male is brought to the ER due to found to be unresponsive. He has a history of alcohol disorder. In ER he looks disoriented, malnourished, and confused. Thiamine, Folic acid, and dextrose-containing IV fluid are given. After a few hours. He develops marked muscle weakness. On lab tests there is an obvious low serum phosphate concentration of 0.4 mg/dl (normal: 2.5-4.5) . Which of the following is the most likely cause of this patient's low serum phosphate level?

A) Decreased renal proximal tubular reabsorption
B) Increased colonic excretion of phosphate
C) Increased extracellular binding with calcium
D) Increased uptake by bone cells
E) Redistribution of phosphate into hepatic and muscle cells