Which organelles are thought to have been independent organisms according to the Endosymbiotic Theory, and what features support this idea?

Mitochondria and Chloroplasts; They possess a double membrane structure

Ribosomes and Endoplasmic reticulum; They can synthesize proteins independently

Peroxisomes and Proteasomes; They carry out oxidative reactions

Golgi Apparatus and Lysosomes; They process proteins separately