The formation of _____ is determined by ______ interactions, whereas the formation of ____ is strongly influenced by ______ interactions.

• A. α-helices, long-range, α-helices, short-range
• B. α-helices, long-range, β-strands, short-range
• C. α-helices, short-range, β-strands, long-range
• D. β-strands, short-range, β-strands, long-range