Use the following information to answer the next few questions.
A group of six students has taken samples of their own cheek cells,purified the DNA,and used a restriction enzyme known to cut at zero,one,or two sites in a particular gene of interest.
-Their next two steps,in order,should be

A)use of a fluorescent probe for the gene sequence, then electrophoresis.
B)electrophoresis of the fragments followed by autoradiography.
C)electrophoresis of the fragments, followed by the use of a probe.
D)use of a ligase that will anneal the pieces, followed by PCR.
E)use of reverse transcriptase to make cDNA, followed by electrophoresis.