$$(w+x)y$$

$$x\,y + y\,w$$

$$\left( {w + x} \right)\,\,\left( {\overline w + y} \right)\left( {\overline x + y} \right)$$

None of the above

$$B\,\overline D + \overline B \,D$$

$$\left( {B + \overline C + D} \right)\left( {\overline B + C + \overline D } \right)$$

$$\left( {B + D} \right)\left( {\overline B + \overline D } \right)$$

$$\left( {B + \overline D } \right)\left( {\overline B + D} \right)$$