What does the author want to convey from the statement ‘But as enormous as his moment in history are the challenges Obama will face from day one’?

(a) His ascent heralds a significant change but it also poses many daunting tasks ahead.

(b) The challenges in front of Obama are insignificant in comparison to his heroic stature.

(c) This the biggest moment in the history of the US, but also marks the beginning of Osama’s onerous journey.

(d) Obama shall face the toughest challenges in the first phase of his presidency.

(e) Obama’s historical win guarantees that he will be able to sail through the tough times easily.