A 5-year-old asymptomatic male child with strong positive family history of Huntington chorea,

(C). In fact, all the mentioned explanations about the disease are true but it is generally agreed that predictive genetic tests should be performed for children if the results of the test will benefit the medical management of the child. Otherwise, the test should be deferred until the child has an understanding of the risks and benefits of testing and can provide informed consent.