a. TB resistant to isoniazid, rifampicin and ciprofloxacin
b. TB resistant to isoniazid, rifampicin and pyrazinamide
c. TB resistant to isoniazid and rifampicin
d. TB resistant to isoniazid and ciprofloxacin
Correct Answer: a. TB resistant to isoniazid, rifampicin and ciprofloxacin
