a) musicplayer.sourceforge.net
b) www.wimpyplayer.com
c) flash-mp3-player.net
d) soundcloud.com

Answer: d
Explanation: There are several MP3 players that have been written in Flash like flash-mp3-player.net, www.wimpyplayer.com, musicplayer.sourceforge.net. Every player has different functionality. So you should be aware of that. Soundcloud.com and MySpace.com are different sites which provide a player that one can embed in the page.