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: Social & Preventive Medicine
Which of the following substances in human milk is protective against Giardiasis? 
Select and explain. 
A. Lactoferrin, B. peroxidase, C. Bile salt stimulated lipase, D. PABA
C: Bile salt stimulated lipase
Answer: C: Bile salt stimulated lipase 
Explanation: Lactoferrin is bacteriostatic against E.coli. Peroxidases and lipases kill bacteria. Bile salt stimulated lipases kill amoeba and Giardia. PABA is impoant in protection against malaria. Ref: Nutrition and Child Development, K.E. Elizabeth, 4th edition pg: 15