Answer:
C) presence of a nucleus
Explanation:
A is incorrect because all cells have a cell membrane
B is incorrect because a flagella does not determine whether or not the cell is eukaryotic or prokaryotic
D is incorrect because a cell wall is used to differentiate an animal cell from bacteria, archaea, fungi, plants, and algae cells
Only eukaryotic cells have a nucleus
Hope this helps :) (maybe mark me brainliest?)
