A patient asks a pharmacy technician which antibiotic is the most effective to treat a case of swimmer's ear that has been resistant to over-the- counter medications. Which of the following is the appropriate response for the technician to give the patient?
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Where are the choices?

Agroup of engineering students from purdue university reported that its licking machine, modeled after a human tongue, took an average of 364 licks to get to the center of a tootsie pop. twenty of the group's volunteers assumed the licking challenge-unassisted by machinery-and averaged 252 licks each to the center.