Answer:
The correct answer is : Experiments with cooking food showed that disease-carrying germs in food could be killed when heated.
Explanation:
Louis Pasteur's experiment with cooking shows that the microbes or germs that cause spoilage of food and disease after eating to an individual, could be killed by the heating process.
His experiment shows that microbes cause food and liquid spoilage which can be prevent by the process of the pasteurization or heating that kill such germs.
Thus, the correct answer is - Experiments with cooking food showed that disease-carrying germs in food could be killed when heated.