Trace the execution of $A^{**}$ for the graph shown below:

$h(A)=8$

$h(B)=3$

$h(C)=7$

$h(D)=0$

Indicate the path that is expanded at each stage.

Show the path to the goal found by $A^{**}.$

$A$ is the start state and $D$ is the goal state.