Why Was Another Nucleotide Not Added to the Smallest Fragment

Multiple Choice

Why was another nucleotide not added to the smallest fragment?

A) DNA polymerase became inactive after adding the last nucleotide.
B) The last nucleotide added does not have a 3′ hydroxyl group.
C) The last nucleotide added does not have a 5′ phosphate group.
D) The DNA strand reached a length where it cannot grow any longer.
E) DNA polymerase reached the end of the template.