Answer:
A Aerobic Bacteria is an ancestor to mitochondria.
Step-by-step explanation:
- Mitochondria is well know as the power house of cells and it is performs cellular respiration.
- It gets originated from a bacteria known as "Alphaproteobacteria". They are nothing but anoxygenic phototropic bacteria with aerobic nature.
- Aerobic bacteria are nothing but the bacteria that can grow or survive in oxygen filled environment or oxygenated environment and can't survive in the absence of oxygen.
Various studies also have stated that mitochondria got originated from such planktonic marine bacteria known as "alphaproteobacterial" which is an aerobic bacteria and hence we can conclude option A as right answer.