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: Microbiology
Which is not a test for testing of Disinfectants 
Select and explain. 
A. Rideal walker test, B. Chick martin test, C. In - use test, D. Stokes test
D: Stokes test
Answer: D: Stokes test 
Explanation: Stokes testing is a antibiotic susceptibility test.