When the ribosome reaches a stop codon on the mRNA,no corresponding tRNA enters the A site.If the translation reaction were to be experimentally stopped at this point,which of the following would you be able to isolate?

A)an assembled ribosome with a polypeptide attached to the tRNA in the P site
B)separated ribosomal subunits, a polypeptide, and free tRNA
C)an assembled ribosome with a separated polypeptide
D)separated ribosomal subunits with a polypeptide attached to the tRNA
E)a cell with fewer ribosomes