Which of the Following Represents a Correct Ordering of the Levels

Which of the following represents a correct ordering of the levels of complexity at which life is studied, from most simple to most complex?

A) Cell, tissue, organ, organism, population, community
B) Community, population, organism, organ, tissue, cell
C) Cell, organ, tissue, organism, population, community
D) Cell, tissue, organ, population, organism, community
E) Tissue, organ, cell, population, organism, community