December 1940 saw the Luftwaffe bomb London alone yet again. The House of Commons was badly hit on the 8th, with continued bombing carried out up to the Christmas period in which there was a lull. On December 29th, the City of London (the financial center) came under intense bombing and very little left intact. Fire raged until January 1, 1941. However, at night one lone building stood silhouetted against the red and orange skyline. Which historic landmark was it?

A. Tower of London
B. St Paul's Cathedral
C. Marble Arch
D. Westminster Abbey