This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
Efficiency of pasteurization can be best assessed by? 
Select and explain. 
A. Oxidase test, B. Phosphatase test, C. Catalase test, D. Indole test
B: Phosphatase test
Answer: B: Phosphatase test 
Explanation: Phosphatase test is widely used yo check the efficiency of pasteurizationREF.PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICINE.Editon-21.Page no.-606.