Hol stands for Human Occupied Landfill Miscellaneous.
I think that B is in the active voice.
The function of the noun phrase in this sentence is "predicate nominative."
Answer:
We throw away stuff.
Explanation:
We (sometimes unintentionally and sometimes not) throw away food wasting it. People do this on a regular basis, causing food waste to be very high in countries such as the US and the UK where there aren't as many poor people, as there are in countries like Africa.