Which of the Following Experimental Assemblies Provides the LEAST Compelling

Which of the following experimental assemblies provides the LEAST compelling evidence that life processes are often self-directed?

A) The 1955 observation that tobacco mosaic virus spontaneously assembles.
B) Nomura's 1960's experiment demonstrated spontaneous assembly of a bacterial 30S ribosomal unit from 21 purified proteins and ribosomal RNA.
C) Removal of protein S16 from the bacterial 30S ribosomal protein/RNA mix in Nomura's experiment prevented self-assembly, providing evidence that the assembly is self-directed and sequential steps are essential.
D) Bacterial ribosome assembly is achieved inside cells in as little as 10 minutes, while in vitro 2 hours at elevated temperatures is required.