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
False about absorption 
Select and explain. 
A. Glucose absorption through SGLT-1 is active, B. Most of the drugs are absorbed by passive diffusion, C. Acidic drugs are absorbed when pH > Pka, D. Basic drugs are absorbed when pH > Pka
C: Acidic drugs are absorbed when pH > Pka
Answer: C: Acidic drugs are absorbed when pH > Pka 
Explanation: When pH > pKa (Basic medium): Acidic drugs are ionized, so can't be absorbed.