Question

select the part whose main job is to help viruses make proteins. smooth endoplasmic reticulum, chloroplast, rough endoplasmic reticulum, vacuole

Explanation:

The smooth endoplasmic reticulum is involved in lipid synthesis and helps cells make lipids. The rough endoplasmic reticulum is associated with protein synthesis due to the presence of ribosomes on its surface. Chloroplasts are for photosynthesis and vacuoles are for storage and maintaining cell - turgor. The organelle that helps cells make lipids is the smooth endoplasmic reticulum.

Answer:

smooth endoplasmic reticulum