The theory of spontaneous generation stated that
 

1. life arose from living forms only
2. life can arise from both living and non-living
3. life can arise from non-living 
4. life arises spontaneously, neither from living nor from the non-living.

(c)  The theory of spontaneous generation stated that life can arise from non-living things only. lt is also known as abiogenesis.

Louis Pasteur by careful experimaentation disapproved this theroy and demonstrated that life arose from living forms (pre-existing life.)