An 8-year-old child who was born and raised in Vermont is healthy and has no known risk factors for tuberculosis (TB). A PPD skin test results in 7-mm induration and redness. How should this be interpreted?
A) As a negative skin test result
B) As a positive skin test result
C) As a negative skin test result (but testing should be repeated in 3 months)
D) As an unequivocal skin test result (and testing should be repeated now)