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
Second generation cephalosporin that can be used orally is : 
Select and explain. 
A. Cefepime, B. Cefalothin, C. Cefaclor, D. Cefadroxil
C: Cefaclor
Answer: C: Cefaclor 
Explanation: None