Context: Read the text.
The nucleus is an important feature of a eukaryotic cell. The nucleus is usually round and stores long coiled structures called chromosomes, which contain the cell's genetic material.
A prokaryotic cell, by contrast, doesn't have a nucleus. Instead, its chromosomes are loose in the cell, not surrounded by a membrane. Because prokaryotic cells lack nuclei and other membrane-bound structures, prokaryotic cells are typically simpler than eukaryotic cells.
Which term matches the picture?
A. prokaryotic cell
B. eukaryotic cell
From the given choices, pick the correct answer and respond by indicating the letter of the correct option.

A