Louis Pasteur's Experiments Disproving Spontaneous Generation Were Different from John

Louis Pasteur's experiments disproving spontaneous generation were different from John Needham's in which important way?

A) The necks of the flasks Pasteur used were bent into an S-shape and left open to the air.
B) Pasteur boiled infusions to kill any microbes present.
C) The necks of Pasteur's flasks were bent into an S-shape and then melted to seal them.
D) Pasteur used meat broths instead of infusions.
E) The flasks Pasteur used were sealed with corks.