Answer:
The endoplasmic reticulum is the correct answer.
Step-by-step explanation:
The endoplasmic reticulum actually helps cellular homeostasis aiding not only in protein transport but also in the production of various proteins and lipids.
In the case of the rough endoplasmic reticulum, proximity to the nucleus makes protein synthesis more efficient as RER can rapidly send a signal to the nucleus to begin the DNA transcription process.