How do chemosynthetic bacteria get energy?

A. They convert carbon dioxide or methane into food without light.

B. They carry out photosynthesis.

C. They carry out digestion.

D. They convert carbon dioxide and sunlight into sugar.

Answer is A

Chemosynthetic bacteria are organisms that use inorganic molecules as a source of energy and convert them into organic substances. Chemosynthetic bacteria, unlike plants, obtain their energy from the oxidation of inorganic molecules, rather than photosynthesis