Your judgement, please - Pt. 11

Retirado do site Chessbase.com.

Advanced enemy pawns...
14.09.2009 – ... in front of your king can really make you nervous, particularly with the major pieces already lined up behind them. Here Black had just played 33. ... Nd5 What is the best move for White now?
A) 34.Bxd4
B) 34.Bxd5
C) 34.Ka1

The solution is here, but first ponder over it with a larger version of the diagram