Which of these events occurs during DNA replication?
a. DNA polymerase synthesizes a complementary strand from one, but not both of the original strands
b. DNA polymerase synthesizes a complementary strand from each of the original strands
c. DNA ligase breaks apart one of the original stands, and other enzymes re-assemble the components into a new strand
d. DNA Ligase breaks apart both of the original strands, and other enzymes re-assemble the components into two new strands