Answer: c. They are photoautotrophs that make food by converting water and carbon dioxide into glucose and oxygen, using energy from the sun.
Photoautotrophs are the organisms which prepare their own food by the process of photosynthesis. They prepare food by utilizing atmospheric carbon dioxide, sunlight and water to produce glucose and oxygen as products. Banana plants are photoautotrophic organism which makes food by converting water and carbon dioxide into glucose and oxygen, using energy from the sun.