ANSWER: d)
1 only
DESCRIPTION
Hair lice can be detected by hair combing. Itchy scalp is
not necessarily being associated due to lice, not all the children with hair
lice could have the symptom. Itching can appear due to allergic reaction which
can be prominent after few weeks of the infestation and may persist for some
time after its eradication; both clean and dirty hair can be susceptible to the
infestation of lice.
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