Answer the following question: Fact 1: Intense heat has a negative impact on an organism. Fact 2: Bacteria are killed by intense heat for a certain time. Given the two facts above, what hurts bacteria?

Select from:
[1]. Hot temperatures.
[2]. Abnormal cell growth.
[3]. Cool air.
[4]. Warm water.
[5]. Room temperatures.
[6]. prolactin release.
[7]. some viruses.
[8]. Pollution.
Answer:
[1].