Many species of bacteria have become resistant to antibiotics because antibiotics have been so widely used. Now, bacteria that used to be killed by antibiotics are more difficult to treat. What is the best way to proceed in dealing with this public health problem?

A. Antibiotics should no longer be used.
B. Antibiotics should be made available to anyone without a prescription.
C. Antibiotics should only be prescribed to people with bacterial infections.
D. Anti-viral medications should now be used instead of antibiotics.