A codon has a sequence of $\underline {\underline {A}}$, and specifies a particular $\underline {\underline {B}}$ that is to be incorporated into a $\underline {C}$. What are $\underline {A},\underline {B},\underline {C}?$

Question

	$\underline {A}$	$\underline {B}$	$\underline {C}$
(1) (2) (3) (4)	3 bases 3 acids 3 bases 3 bases	amino acid carbohydrate protein amino acid	carbohydrate protein amino acid protein