Which Statement Best Describes How Our Views on Extinction Have

Which statement best describes how our views on extinction have changed over the past several hundred years?

A) Our views have changed from denying that extinction ever took place to realizing that extinction occurs and Earth has experienced several mass extinction events.
B) Our views have changed from believing that extinctions never occurred to understanding that extinction does occur, but it is rare.
C) Our views have changed from believing that extinction never takes place to realizing that it only occurs sporadically, as evidenced by the mass extinction events in geologic history.
D) Our views have changed from believing that extinction never takes place to realizing extinction occurs at a constant rate across all taxa.