Lenticular Galaxies, S0, Have No Spiral Arms

Lenticular galaxies, S0, have no spiral arms. What is the difference between an S0 and an elliptical E0, which also has no spiral arms?

A) There is no difference. These are two different designations for the same thing.
B) An S0 will have more gas and dust than an E0.
C) The S0 will contain primarily Population II stars while the E0 has primarily Population I stars.
D) The S0 will be likely to contain supernova remnants while ellipticals never contain supernova remnants.