For this short answer question: please answer all parts of t…

For this short answer question: please answer all parts of the questions. Your answer must be your words, you are not allowed to use any sources of information. Mary made her family’s favorite cream of broccoli soup for lunch. Lunch was forgotten when her son suddenly remembered he had a soccer game at noon. The family finally returned several hours later and sat down to eat. Although Mary reheated the soup (which had been left out at room temperature while they were gone), why is this no guarantee that Mary and her family will not become sick due to food poisoning?