The diagram illustrates the $12$C bus.

Assume that:

Chip $x$ is the master

Chip $Y$ is the slave

At the current time point, $Y$ is sending $0$ to $x$ and there is no clock stretching.

What are the values of the signals $Ax,Ay,Cx,$ and $xy?$

Write $0$ or $1.$

Ax

$Cx$

Ay

$Cy=$