If the Heuristic Being Used Is The-Number-Of-Tiles-Out-Of-Place,which of the Following $\begin{array} { l } 123 \\45 \\786\end{array}$

Multiple Choice

If the heuristic being used is the-number-of-tiles-out-of-place,which of the following eight-puzzle will be given priority for further consideration by a heuristic search?

A) $\begin{array} { l } 123 \\45 \\786\end{array}$

B) $\begin{array} { r } 23 \\156 \\478\end{array}$

C) $\begin{array} { l l l } 1 & 3 \\4 & 2 & 6 \\7 & 5 & 8\end{array}$

D) $\begin{array} { r l } 1 &3 \\4&2& 6 \\7&5&8\end{array}$