What Will Happen in the Future If Humans Continue to Impact

What will happen in the future if humans continue to impact natural systems at the same rates as today?

A) The environment is much too big and the human population much too small in comparison to have any serious consequences.
B) Human societies may experience severe disruptions in the services ecosystems provide on which human societies depend.
C) Some short-term changes may be experienced, but the magnitude will likely be no greater than those that have occurred naturally.
D) Some beneficial and necessary reductions in population growth will occur.