Question

unfinished proteins transported from the er are modified in the cells a nucleus. b smooth er. c ribosomes. d golgi apparatus.

Explanation:

The Golgi apparatus modifies, sorts, and packages proteins and lipids that have been transported from the endoplasmic reticulum (ER). The nucleus contains genetic material and is not involved in ER - protein modification. The smooth ER is mainly for lipid synthesis and detoxification, not protein modification from the ER. Ribosomes are sites of protein synthesis, not modification of proteins from the ER.

Answer:

D. Golgi apparatus