A nurse is reinforcing teaching to the caregivers of a child who is to have an electroencephalogram (EEG). Which of the following statements by the caregivers indicates understanding of the teaching?

A. "I cannot wash my child's hair prior to the procedure.": Hair should be clean and free of oils or products to ensure proper electrode placement and signal conduction. B. "This procedure will be painful for my child.": An EEG is a non-invasive and painless test. C. "I should not give my child anything to eat prior to the procedure.": Eating is usually permitted before an EEG unless sedation is planned. D. "My child should remain quiet and still during this procedure.": Movement can interfere with the test's accuracy, so the child needs to stay calm and still during the procedure.