Final answer:
The behavioral difficulty not associated with fetal alcohol syndrome from the given options is 'problems with shyness'. Fetal alcohol syndrome is commonly associated with difficulties like impulse control, language outbursts, and hyperactivity, while shyness is typically not a symptom of FAS.
Step-by-step explanation:
The question is asking which behavioral difficulty is not associated with children who have fetal alcohol syndrome (FAS). Problems with shyness, impulse control, language outbursts, and hyperactivity are considered some of the behavioral challenges faced by children with FAS.
However, given the options provided, the correct answer is problems with shyness as it is not typically listed as a common symptom of FAS in medical literature. Issues commonly associated with FAS include balance and posture problems, repetitive motor behaviors, difficulty with planning and executing tasks, and poor judgment.