Which of the following would discourage the development of an antibiotic-resistant bacteria?

a
taking an antibiotic for the doctor-directed amount of time even if symptoms lessen or disappear
b
encouraging the use of antibiotics with farm animals to kill the bacteria first
c
increasing the use of antibacterial hand sanitizers and sanitizing lotions
d
using an aggressive antibiotic at the onset of symptoms and then cutting back when symptoms disappear

a

taking an antibiotic for the doctor-directed amount of time even if symptoms lessen or disappear