Let us try to simplify (minimize) the expression given in each option
Option - A: $wx+w(x+y)+x(x+y)=x+wy$
$wx + wx + wy + x$
$wx + wy + x$
$x (1+w) + wy$
$x + wy$
Option - B: $\overline{w \bar{x}(y+\bar{z})} + \bar{w}x = \bar{w} + x + \bar{y}z$
$\overline{w\bar{x}} + \overline{(y+\bar{z})} + \bar{w}x$
$\bar{w} + x + \bar{y}z + \bar{w}x$
$\bar{w} + \bar{w}x + x + \bar{y}z$
$\bar{w} + x + \bar{y}z$
Option - D: $(w+y)(wxy+wyz)=wxy+wyz$
$wxy + wyz + wxy + wyz$
$wxy + wyz$
Option A, B, D are matching fine.
Hence, Option - C is the answer