The statement that best evaluates why Louis Pasteur’s inventions were significant is:
Pasteur’s invention of pasteurization made food items such as milk safer to drink.
This reflects the key contribution of Pasteur to public health and food safety through his work on pasteurization, which has had a lasting impact on the food industry. The other statements are incorrect as they attribute inventions to Pasteur that he did not create (radium, cosmology, steam engine).