Answer: A

Reasoning: “Cold” (non-thermal) techniques such as the powered microdebrider or cold-steel tonsillotomy are typically used for intracapsular (partial) tonsillectomy, which leaves the capsule behind and is associated with less postoperative pain and bleeding compared with the traditional extracapsular removal of the whole tonsil [Vaughan 2007, PMID 18033973; Schmidt 2007, PMID 17875860].  
Therefore the statement that an extracapsular approach is best for the cold technique is incorrect, whereas the other options are true: obstructive sleep apnoea is a clear indication for paediatric tonsillectomy, adenoids should be removed when markedly hypertrophic, and the paediatric larynx (including the cricothyroid region) lies higher and more anterior than in adults.