<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:An investigator is studying the structure of the amino-terminal of the Huntingtin protein using x-ray crystallography. The terminal region is determined to have an α-helix conformation. Which of the following forces is most likely responsible for maintaining this conformation?? A: Hydrophobic interactions, B: Disulfide bonds, C: Peptide bonds, D: Electrostatic side chain attraction, E: Hydrogen bonds,  <response>: This question is asking about the forces that maintain the α-helix conformation of a protein. The amino-terminal region of the Huntingtin protein was found to have an α-helix structure using x-ray crystallography. The α-helix is a common secondary structure in proteins that is stabilized by hydrogen bonds between backbone amide and carbonyl groups spaced three to four residues apart along the helix. Disulfide bonds form between cysteine residues and stabilize tertiary structure. Peptide bonds link amino acids in the primary structure. Hydrophobic interactions and electrostatic interactions between side chains stabilize tertiary and quaternary structure but do not directly maintain α-helices.Therefore, the force that is most likely responsible for maintaining the α-helix conformation of the Huntingtin amino-terminal is hydrogen bonds.E: Hydrogen bonds 