Question: Louis Pasteur discovered a process that allows milk to be stored in sealed containers for long periods of time without spoiling. The process, called pasteurization, involves heating the milk before placing it in the sealed containers.Which is the best explanation of how pasteurization works?

  Options: 
 A. Heat strengthens molecules that prevent spoiling.
 B. The chemical structure of the food changes with the heat.
 C. Heat killed microorganisms that could cause spoiling.
 D. The food particles are better mixed after heating.
Answer: C