I think its B.all the members of a population ate genetically very similar etc
Cellular compartment. Cellular compartments in cell biology comprise all of the closed parts within the cytosol of a eukaryotic cell, usually surrounded by a single or double lipid layer membrane. These compartments are often, but not always, defined as membrane enclosed regions.
Https://www.ncbi.nlm.nih.gov/books/NBK10039/
Breaking down material such as rocks and wood
