During play, a toddler with a history of Tetrology of Fallot (TOF) might assume which position:

Rationale: A. Sitting is a normal position for play but is not specifically associated with TOF. B. Supine is not typical for relieving symptoms in TOF and may worsen hypoxia. C. Standing does not relieve cyanotic spells associated with TOF. D. Squatting is a classic compensatory position for children with Tetralogy of Fallot. It increases systemic vascular resistance, which helps improve pulmonary blood flow and oxygenation during hypoxic (Tet) spells.