Angiosperms are flowering plants, so I'd say flowers and the parts of flowers are a pretty common characteristic.
Bacteria will multiply so fast between
41-135 degrees Fahrenheit. Bacteria
can grow rapidly in the TDZ, also known as the Temperature Danger Zone, which
is 41f - 140f. Generally 37 degrees - body temperature. However some,
such as fungi, prefer lower temperatures as they are found on the outside of
the body. Similar some bacteria.
I believe the answer is A
The most specific would be felis catus. That is the name of the species in biology, and there are no more taxonomic divides after species.