Explain how aspartate 102 influences the role of histidine 57 in chymotrypsin's catalytic mechanism.

• A. Aspartate 102 prevents histidine 57 from acquiring a hydrogen.
• B. Aspartate 102 positions histidine 57 to act as a better base.
• C. Aspartate 102 enhances the nucleophilic ability of histidine 57.
• D. Aspartate 102 inhibits histidine 57's ability to act as a base.

Answer: (B)