The length of DNA spooled around a histone complex is determined by digesting DNA bound to histones with a DNA endonuclease which forms breaks at unbound DNA sequences,releasing fragments whose size and number reveal the spooled length and overall DNA fragment length.Digestion of an eukaryal DNA fragment generated four DNA segments.How long was the original DNA?
A)50 bp
B)100 bp
C)400bp
D)800 bp
E)2000 bp