D all of the above because anything in an ecosystem adds to the biodiversity of it.
State laws affect the citizens and property in that state only. State laws may not conflict with federal laws. Local governments, also called municipalities, include counties, parishes, cities, towns, and so on. Local governments may pass laws that are not reserved by the federal government or the state.
Here is the answer: The Vietcong and north Vietnamese showed that they could still fight. D is the correct answer! Hope this helps!
