Which neoclassical cathedral in Saint Petersburg, modelled partly after Saint Peter's Basilica in Rome, features a grand semi-circular colonnade by Andrey Voronikhin?

• A Saint Isaac's Cathedral
• B Smolny Cathedral
• C Kazan Cathedral ✓
• D Peter and Paul Cathedral

Completed in 1811, Kazan Cathedral's colonnade of 96 columns embraces a plaza on Nevsky Prospekt and houses the tomb of Field Marshal Kutuzov.