A 27-year-old woman gives birth to a term infant after an uncomplicated pregnancy and delivery. The infant is cyanotic at birth. Two months later, physical examination shows the infant to be at the 37th percentile for height and weight. The representative gross appearance of the infant’s heart is shown. Which of the following is the most likely diagnosis?

• Tetralogy of Fallot
• Pulmonic stenosis
• Truncus arteriosus
• Transposition of the great vessels

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