d) Replication; creating two complimentary strands of DNA.
EXPLANATION:
DNA replication is a process that occurs during cellular division where two identical molecules of DNA are created from a single molecule of DNA. As a semiconservative process, a single molecule containing two strands of DNA in double helix formation is separated, where each strand serves as a template for the new DNA molecules.
Because the double helix is anti-parallel and DNA polymerase only synthesizes new DNA from 5′-3′, the template strand reading 3′-5′ results in a continuous, leading strand, while the template strand reading 5′-3′ results in a discontinuous, lagging strand.
Being a highly regulated process, multiple proteins are required both during and following replication to quickly correct mistakes and damages.
