Which of the Following Statements About $\alpha$ -Helices And $\beta$ -Sheets Are FALSE?
A) They Are Both Incompatible with the -Sheets

Which of the following statements about $\alpha$ -helices and $\beta$ -sheets are FALSE?

A) They are both incompatible with the amino acid proline.
B) They both interact with other protein elements through amino acid side chains that stick out.
C) They both contain a recurring pattern of hydrogen bonds from one peptide bond to another peptide bond.
D) They both give rise to similar tertiary structures.