What is genetic material called during interphase

The cluster of developing cells from conception until birth is called an

I’m stuck on this question cuz i’m stupid sksksksk

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass