Answer:
B) Change the amino acid sequence slightly to ensure a more stable tertiary structure.
Step-by-step explanation
Extreme conditions such as high temperature or high ph can interfere with the action of enzymes due to denaturation or changes in conformation.
Enzymes have to be stable at those condition to function optimally.
Stability of an enzyme is determined by the Amino sequences in its tertiary structure. Therefore by slightly changing the Amino acid sequences to ensure a more stable tertiary structure will help achieve the goal.