DNA Sequencing by the Chain-Termination Method Utilizes DNA Polymerase I

DNA sequencing by the chain-termination method utilizes DNA polymerase I to make a complementary copy of the target or template DNA molecule.A reaction with a 20 bp template and dideoxyadenosine nucleotides as terminators results in the production of a 5 bp fragment.Based on this result,we can conclude that the template contains

A) a cytosine at position 5.
B) a thymine at position 5.
C) a cytosine at position 16.
D) a thymine at position 16.
E) a uracil at position 5.