I believe that the answer should be D. Cell cycle.
A... Prokaryotes and Eukaryotes have different cellular structures i.e., presence of mitochondria, chloroplasts, and a cell wall.
D. Hennig
Will Hennig was an entomologist who introduced the cladistic classification method.
While it is still in the nucleus in order to become a mature mRNA. The mature mRNA is exported from the nucleus to the cytosol, where it is translated at a ribosome to make a polypeptide.