Answer the following question given this paragraph: 

Some Eukarya are also single-celled, but many are multicellular. Some have a cell wall; others do not. However, the cells of all Eukarya have a nucleus and other organelles.


Q: The cells of all eukarya have a what?

 Choices:

- chloroplast

- epidermis

- necrosis

- nucleus

A:
nucleus
