Question

select the part whose main job is to help ribosomes make proteins. chloroplast rough endoplasmic reticulum mitochondria golgi

Explanation:

The rough endoplasmic reticulum (RER) has ribosomes attached to its surface. These ribosomes synthesize proteins, and the RER helps in the proper folding and initial processing of these newly - made proteins. Chloroplasts are involved in photosynthesis, mitochondria in cellular respiration, and the Golgi apparatus in modifying, sorting, and packaging proteins (not in helping ribosomes make them initially).

Answer:

rough endoplasmic reticulum