As We Study the Past 50,000 Years Worth of Information

As we study the past 50,000 years worth of information about species' decline and extinctions around the world

A) we see rapid extinctions, especially of the larger animals, not long after humans arrive in an area.
B) we can make a rough estimate of a population's risk of a local extinction.
C) we see a steady-state rate of extinctions on all continents, only islands show a difference due to climate change.
D) we see huge extinctions, especially of the larger animals, with ice ages and global warming.