Your judgement, please

6/11/2009 – The ChessBase CD "The greatest tournaments in the history of chess" has a remarkably detailed review of the most beautiful game in the 1883 London tournament. In the diagram position the d5-square has been cleared; but White now has to deal with threats on the c-file. Which evaluations is correct: A) Black has the initiative firmly in his hands since he is threatening ...Rc2; B) It's obvious how White can get the advantage – what are long diagonals for? C) The bishop on b2 will play a decisive part in the attack – but first White needs some more open lines. The solution is here, but first ponder over it with a larger version of the diagram