Answer:
The statement that most accurately describes the hypothesis is Statement 5 - If microbes arise from nonliving matter, they should appear spontaneously in sterile broth.
Step-by-step explanation:
The statement is most accurate because he exposed two broth culture dust particles, one in a broken flask left opened while the other in an enclosed unbroken flask. So the one left open in a broken flask indicated microbial growth while the other was clear, simply showing that microorganisms do not occur from non-living materials alone.