This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
The success of oral rehydration therapy of diarrhea depends upon which of the following processes in the intestinal mucosa ? 
Select and explain. 
A. Sodium pump mediated Na+ absorption, B. Glucose coupled Na+  absorption, C. Bicarbonate coupled Na+  absorption, D. Passive Na+ diffusion secondary to nutrient absorption
B: Glucose coupled Na+  absorption
Answer: B: Glucose coupled Na+  absorption 
Explanation: None