Answer:
B. smooth endoplasmic reticulum
Explanation:
The smooth endoplasmic reticulum (SER) is a member of the endomembrane system. It is present in eukaryotic cells. SER is made of tubular structures called cisternae. It does not contain ribosomes. So, it does not associated with protein synthesis. Its primary function is to make lipids, steroid hormones and detoxification of the metabolic by-products which are harmful. The fats or lipids synthesised by SER helps in membrane biogenesis.
