Answer: Prison Litigation Reform Act
Explanation: this act was made because politicians thought that the lawsuits were inundating the federal court system.
Prehistory is the history before any records (as in, detailed reliable records, such as writing), for which only very indirect evidence is available such as archaeological funds. So- there could be no weather reports from pre-history! if there were, we would call this time "history" - the correct answer is d.
Only thing I can think of is ivory. They do produce it, it is exported but that's illegal...