Why Is a "Watchful Waiting" Approach Taken for Otitis Media

Why is a "watchful waiting" approach taken for otitis media in children younger than 2 years?

A) For a nonsevere case of otitis media,the problem may take care of itself so antibiotics will not be prescribed to help reduce the risk of bacterial resistance.
B) Not many antibiotics are available to help treat otitis media in children younger than 2 years,so they are reserved for severe cases.
C) The liver in children younger than 2 years is not fully developed to metabolize antibiotics,so antibiotics are reserved for treatment only if necessary.
D) Children younger than 2 years do not like to take antibiotics and may not receive the full dose necessary,thus increasing bacterial resistance;a "watchful wait" is used to make sure they really need an antibiotic.