Which of the following is true about cells?
A.
Both eukaryotic cells and prokaryotic cells always contain both a true nucleus that is well-defined and cell parts that are separated from the cytoplasm by membranes.
B.
In general, eukaryotic cells do not have a true nucleus or membrane-bound cell parts, whereas prokaryotic cells contain both a nucleus and cell parts enclosed by membranes.
C.
In general, prokaryotic cells do not have a true nucleus or membrane-bound cell parts, whereas eukaryotic cells contain both a nucleus and cell parts enclosed by membranes.
D.
Neither prokaryotic cells nor eukaryotic cells ever contain both a true nucleus that is well-defined and cell parts that are separated from the cytoplasm by membranes.