When Castrol Syntec, a premium motor oil, sought a new way to reach its young, car-passionate audience, the brand found its mark with video games. In its first-ever attempt at in-game advertising, Castrol Syntec found a way to show consumers (in a virtual world) the brand's power and performance. In the communication process, the game served as a(n) _____ for transmitting the message. sender O receiver encoder O channel decoder