Answer: The correct answer is D: Add complementary nucleotides.
Explanation: DNA polymerases are enzymes that catalyze reactions in the process of DNA replication (process where complementary chains are created from existing DNA). From a template DNA, this enzyme adds deoxyribonucleotide triphosphate (dNTP) that will be complementary to the nucleotides of the template chain. DNA polymerases also perform other functions during the replication process. In addition to participating in elongation, perform a corrective and restorative function due to its 3 'exonuclease activity, which gives them the ability to degrade DNA from one end of the latter, thus avoiding errors produced during DNA replication.
