the introduction of semisolid foods to a five-mounth-old-infant may se delay if

A the infant has bottle mouth syndrome.
B family members have a history of allergies.
C the infant consistently prefer a bottle.
D the infant is teething.
The answer correct is D

I disagree.

Teething goes on for years. Do you want to withhold semisolid foods until the child has all of his teeth??