The complement, $F^{\text{'}},$ of $F(x,y,z)=(x{y}^{\text{'}}+z^{\text{'}})+(x^{\text{'}}z+y)($not simplified$)$ is:

$(x^{\text{'}}y+z)+(x^{\text{'}}{z}^{\text{'}}+y).$

$(x+y^{\text{'}}+z^{\text{'}})(x^{\text{'}}yz).$

$((x^{\text{'}}+y)z)((x+z^{\text{'}})y^{\text{'}}).$

$z^{\text{'}}(x+y)+y(x^{\text{'}}+z).$

None of the above