28.White to move

In the position above as you can see Black has an advantage by one piece.The question is

a)Is it possible for White to do something and prevent from losing?
b)Can Black easily win in this position?

Thanks for kumara for solving problem 27 by 1.Qf8+ Kf6 2.Qh8+ Kf5 3.g4+ hxg4 4.Rd5+ ex Rd5 5.Qc8+ Qxc8. stalemate.