Answer:
C. chemical compounds
Step-by-step explanation:
hints the name, Chemotrophs get their energy and matter from chemical compounds. Unlike phototrophs, which obtain energy from sunlight, and heterotrophs, which consume other organisms for energy and matter, chemotrophs can harness energy from chemical reactions involving inorganic or organic compounds. They derive their energy through chemosynthesis, a process that involves the oxidation of various chemicals to produce energy for their metabolic activities.