$\frac{?}{\text{b}\text{a}\text{r}}\frac{C}{b}ar(D)\frac{,}{b}ar(C)D,C_{,}\frac{C}{b}ar(D)$

$\backslash$table$[[\frac{?}{\text{b}\text{a}\text{r}}\frac{A}{b}ar(B),1,0,0,1],[\frac{?}{\text{b}\text{a}\text{r}}(A)B,0,1,1,],[$A B$,0,1,1,0],[$A $\frac{?}{\text{b}\text{a}\text{r}}(B),1,0,$O$,1]]$

Using the Karnaugh map shown, determine the simplified Boolean expression.