Answer the following question given this paragraph: 

Like mitochondria, plastids contain their own DNA. Therefore, according to endosymbiotic theory, plastids may also have evolved from ancient, free-living prokaryotes that invaded larger prokaryotic cells. If so, they allowed early eukaryotes to make food and produce oxygen.


Q: Like mitochondria, plastids contain their own what?

 Choices:

- riboflavin

- bacteria

- molecule

- dna

A:
dna
