Which of the Following Sentences Is True?
A) Rearranging the Amino

Which of the following sentences is true?

A) Rearranging the amino acid residues in a peptide or protein changes its function.
B) In an $\alpha$ -helix form, portions of polypeptide chain line up side by side with hydrogen bonds holding neighboring strands of sheet together.
C) The order of amino acid residues in a protein is referred to as its tertiary structure.
D) The overall three-dimensional shape of a protein is referred to as its primary structure.