Which reinforced concrete landmark designed by Le Corbusier in Ronchamp is considered a masterpiece of modernist sacred architecture?

• A Sainte-Chapelle
• B Eglise Saint-Sulpice
• C Basilique du Sacre-Coeur
• D Notre-Dame du Haut ✓

Le Corbusier's Notre-Dame du Haut chapel, completed in 1954, broke from his machine-age aesthetic with its sculptural, light-filled form.