Q. One day, you wake up with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a laboratory, and telephones you the next day to say that an antibiotic will not help you get better. Which among the given is the most likely reason for the doctor's statement?

• (A) Having waited a day, it is too late to take an antibiotic
• (B) You need to be vaccinated instead of taking an antibiotic
• (C) You need an antiseptic, not an antibiotic
• (D) You are infected by a virus