Respuesta :
Only photosynthetic protists and other non-plant autotrophs would survive. All energy enters the biosphere through sun, and therefore autotrophs. If this questions assumes that only plants do photosynthesis, then it would be C.
Also, the answer wouldn't be D, because bacteria are prokaryotes and don't have the ability to do photosynthesis.
Also, the answer wouldn't be D, because bacteria are prokaryotes and don't have the ability to do photosynthesis.