Answer:
WSAD are the four keys on a QWERTY keyboard (standard keyboard) that are used for gaming.
W: this key is typically used to go forward in video games.
S: this key is used to go back or backwards in gaming.
A: "A" is used when a player wants to go left in a video game.
D: "D" is used when a player wants to go right in a video game.
Hope this answered your question! :)