Which of the Following Best Explains the Molecular Complexity of Living

Which of the following best explains the molecular complexity of living organisms?

A) Each organism has its own unique set of monomers for use in constructing polymers.
B) The large number of different monomers allows for the construction of many polymers.
C) A small number of monomers can be assembled into large polymers with many different combinations/sequences.
D) Condensation reactions can create different polymers because they can combine virtually any molecules in the cell.
E) Although there are not many biological molecules in cells, each one has many different functions.