Consider two devices, Dev$1$ and Dev$2.$ Dev$1$ is the initiator and Dev$2$ is the responder. The devices are using handshake communication, and Dev$1$ sets the request signal to $1.$ What happens next?

Group of answer choices

Nothing happens.

Dev$2$ handles the request from Dev$1$ but does not set an acknowledge signal.

Dev$2$ handles the request from Dev$1$ and then sets an acknowledge signal to $1.$

Dev$2$ sets an acknowledge signal with $1$ before handling the request.