A Client Has Been Diagnosed with a Gram-Negative Bacterial Infection

A client has been diagnosed with a gram-negative bacterial infection and has been prescribed a fluoroquinolone for treatment of this infection.What step of the bacterial DNA replication process is most likely being affected by the use of this medication?

A) It inhibits the relaxation of the supercoil prior to the unwinding process, which terminates replication.
B) It inhibits the unwinding of the two strands of the supercoil, thus terminating replication.
C) It inhibits the enzyme DNA polymerase necessary for DNA replication.
D) It binds to the enzyme topoisomerase IV, preventing the new DNA strands from migrating to opposite sides of the cell, thus preventing bacterial cell replication.