The characteristics that are common to all eukaryotic cells are:
A. nucleus
C. membrane-bound organelles
D. DNA
Eukaryotic cells have a defined nucleus where their DNA is stored, contain various membrane-bound organelles (such as mitochondria, endoplasmic reticulum, Golgi apparatus, etc.), and have DNA as their genetic material.
B. no nucleus is not a characteristic of eukaryotic cells; it applies to prokaryotic cells instead.