A newborn presents with cyanosis unresponsive to supplemental oxygen, a single S2, and 'egg-on-a-string' cardiac silhouette on CXR. The most likely diagnosis is:
-
A
Tetralogy of Fallot
-
B
Transposition of the great arteries
-
C
Tricuspid atresia
-
D
Total anomalous pulmonary venous return