I think the answer would be A.
Organic matters are generally carbon compounds. Therefore, the organic molecules contain carbon. The main reason of the presence of carbon in the organic molecules is the catenation property of carbon.
Answer:
B. Mitochondria
Explanation:
The mitochondria are the organelles that supply energy to the cell. They are also known as the powerhouse of the cell.
The earth equator since all the rays coming from the sun are perpendicular to the equator rather than the restaurants of the Earth.