Biology

The correct answer is: A.Presence of membrane-bound organelles

Explanation:

A.Presence of membrane-bound organelles: This is the key difference between prokaryotic and eukaryotic cells. Eukaryotic cells have membrane-bound organelles (such as the nucleus, mitochondria, and endoplasmic reticulum), while prokaryotic cells do not have membrane-bound organelles. Instead, prokaryotic cells have structures like the nucleoid region where their DNA is located, but it is not enclosed in a membrane.

B.Size of the cell: While prokaryotic cells are generally smaller than eukaryotic cells, size alone is not a definitive c...