Answer:
The correct answer is - S or synthesis phase.
Step-by-step explanation:
S phase or synthesis phase of the interphase is the phase of cell division which takes 5 to 6 hours to complete. In this phase the RNA content increases while DNA replication and synthesis takes place to provide enough genetic matter and polymer to complete the cell division.
Duplication or replication of the DNA increases the amount of nucleic acid for the successful division of the cell. S phase is the phase that prepares the parent cell for cell division.