21. Wii is a home video game console released by Nintendo.
(A) Playing video games is appealing to youngsters because it helps release the school pressure.
(B) Wii was first launched, outside of Japan, in the United States in 1996, and later in Taiwan and SouthKorea in 2008.
(C) Its most distinguished feature is the wireless controller, called Wii Remote.
(D) The Remote can detect movement in three dimensions and enable players to interact with items onscreen.