Select the correct product.
(y + z)^3
y^3 + z^3
y^3 + 3y^2z + 3yz^2 + z^3
3y + 3z
y^3z^3
(y + z)^3
y^3 + z^3
y^3 + 3y^2z + 3yz^2 + z^3
3y + 3z
y^3z^3