A New Restriction Enzyme Has Been Discovered in a Bacterium

A new restriction enzyme has been discovered in a bacterium.When a sample of DNA is cleaved with this restriction enzyme, it is found that the resulting DNA fragments average about 256 nucleotides in length.What is the likely size of the DNA sequence recognized by this restriction enzyme?

A) Three nucleotides
B) Four nucleotides
C) Five nucleotides
D) Six nucleotides
E) At least 10 nucleotides