Are the following statements about protein structure prediction true or false?
A. The prediction of secondary structure relies on information regarding the known occurrence of amino acid residues in α helices or β sheets from X-ray crystallographic data.
B. The prediction of secondary structure is highly accurate, nearly 100% correct.
C. To predict the tertiary structure of a protein based on its amino acid sequence, it is necessary that the protein of interest is homologous to another protein whose tertiary structure is already known.