The correct statement is: "Rough ER contains ribosomes and smooth ER transports materials other than proteins."
In summary:
- Rough Endoplasmic Reticulum (Rough ER) has ribosomes attached to its surface, which are involved in synthesizing proteins.
- Smooth Endoplasmic Reticulum (Smooth ER) does not have ribosomes and is involved in the synthesis of lipids and the detoxification of certain chemicals, among other functions.