This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General Microbiology (Sterilization and Bacterial Genetics), Subject name: Microbiology
What is the thermal death point? 
Select and explain. 
A. Lowest temperature that kills all microbes in 10 min, B. Highest temperature that kills all microbes in 1 min, C. Temperature that kills 1% of a microbial population, D. Optimum temperature required to kill 50% of a microbial population
A: Lowest temperature that kills all microbes in 10 min
Answer: A: Lowest temperature that kills all microbes in 10 min 
Explanation: Thermal death point or temperature- is the temperature at which an organism is killed in 10 minutes. Thermal death time- Time required to kill all cells at a given temperature in a specified environment. Decimal death time - The time required to kill 90% of cells at a paicular temperature