Copies of the enzyme DNA polymerase work together to synthesize DNA. Why are two copies of the enzyme necessary at each replication fork? A. One copy breaks apart the original DNA molecule, and the other copy synthesizes two complementary strands. B. One copy synthesizes two complementary strands, and the second copy edits or corrects the new strands if necessary. C. Each copy attaches to one strand, and each synthesizes a complementary strand. D. Both copies attach to the same strand, where they work together to synthesize the complementary strand.