A nurse is teaching the guardian of a school-age child who has autism spectrum disorder about a new prescription for risperidone. Which of the following statements by the guardian demonstrates an understanding of the teaching?

A reason: This medication will help control my child's aggressive behavior. Risperidone is often prescribed to manage irritability and aggressive behaviors in children with autism spectrum disorder. This statement accurately reflects one of the medication's intended effects. B reason: This medication can cause my child to have low blood sugar. Risperidone is not known to cause low blood sugar. It can, however, cause other metabolic side effects like weight gain and increased cholesterol levels. C reason: This medication won't require my child to have routine lab tests. Routine lab tests are often necessary when taking risperidone to monitor for potential side effects, such as metabolic changes and blood glucose levels. D reason: This medication might need to be increased if my child has muscle spasms. Muscle spasms or extrapyramidal symptoms may occur with risperidone, but they typically require management with adjunct medications rather than increasing the dosage.