The nurse is assessing the lung sounds of a preschooler. Which action should the nurse implement to ensure the child's cooperation?

A. Offer the child bubbles before the stethoscope is placed. Blowing bubbles can help distract the child and make them more relaxed, but it may not be as effective as involving the child directly in the process.B. Allow the child to use a stethoscope on a stuffed animal. This is an effective approach as it involves the child in the process, making them more comfortable and cooperative. It helps demystify the stethoscope and can reduce fear or anxiety.C. Place a toy in the child's hands while listening to the breath sounds. Holding a toy can be distracting and help keep the child still, but it does not directly involve the child in the assessment process as effectively as letting them use the stethoscope.D. Have the child blow a cotton ball and have the parent catch it. Blowing a cotton ball can help with deep breathing, which is useful for lung auscultation. However, it may not ensure the child's cooperation throughout the entire assessment as effectively as option B.