The Findings of Pasteur and Others Have Established That

The findings of Pasteur and others have established that

A) living organisms regularly self-assemble (arise spontaneously) from nonliving matter.
B) living organisms do not arise from nonliving matter today, nor did they arise from nonlife in the past.
C) advanced organisms cannot arise from nonliving matter, but simple microbial life often does arise from nonlife today.
D) life does not arise from nonliving matter today, but in the conditions of early Earth, such an event could have occurred.