Final answer:
The end product of DNA replication is two identical DNA molecules, consisting of one original and one newly synthesized strand in each molecule.
Step-by-step explanation:
The end product of DNA replication is C) Two identical DNA molecules. This process involves unwinding the two strands of the parent DNA, synthesizing complementary strands, and then re-forming a double helix structure such that each of the two new DNA molecules contains one original and one newly synthesized strand. This thereby ensures that each new cell receives an exact copy of the organism's genome.