division of cells replication of DNA formation of a cell plate separation of chromatids
I gave my students this multiple choice question: Which step in asexual reproduction would you expect to find in volvox but not in amoebas?

Only one answer is correct among these 4 choices:
- division of cells
- replication of DNA
- formation of a cell plate
- separation of chromatids

Could you tell me which one is correct?

formation of a cell plate