The correct option is C S phase
A normal cell cycle comprises of interphase and mitosis. The interphase normally comprises of first growth phase (G-11 phase) which starts immediately after the cytokinesis, synthesis phase (S phase) and second growth phase (G-22 phase). The DNA synthesis or DNA replication occurs during S phase. DNA synthesis occurs through DNA replication. This is followed by synthesis of histones. Synthesis of other biochemicals also continues. Centrioles replicate towards the end of S phase or beginning of G-22 phase.
So, the correct answer is option C.