Genetic and chemical modifications are often performed on antimicrobial drugs. which of the following statements explains the advantage of performing such drug modifications? to be marked correct, you'll need to select all applicable statements, as there may be more than one correct answer.

a. chemical modification may allow for extended drug capacities such as expanded spectrum of activity and increased stability.
b. natural antibiotics are rare in nature, so one must rely on chemical drug synthesis of drugs.
c. chemical editing may allow for enhanced drug production.
d. chemical modifications can allow for certain antimicrobial resistance mechanisms to be circumvented.