What was the concept central to Rachel Carson's famous study of finches?
a) Rachel Carson's famous study of finches focused on the concept of bioaccumulation.
b) The central theme in Rachel Carson's study of finches was the concept of bioaccumulation.
c) Bioaccumulation played a key role in Rachel Carson's renowned study of finches.
d) The concept of bioaccumulation was a crucial aspect of Rachel Carson's study of finches.