Answer:
Habitat/Environment. Either can be right
Gases released from improperly maintained compost piles are a negative effect associated with the composting process. ... The release of methane and carbon dioxide contributes to the problem of greenhouse gases in the atmosphere. Poorly operated composting facilities also cause unpleasant odors.
C would be the answer,you have cells in every part of your body.
tell me if im right if it shows you