which of the following is equivalent to the polynomial expression below?

(10g^(3)-8g^(2)+5g-14)+(10g^(2)+12g)

10g^(3)+2g^(2)+17g-14
10g^(3)+2g^(2)+12g-14
20g^(3)+2g^(2)+17g-14
20g^(3)-8g^(2)+17g-14

The correct equivalent expression is 20g^3 - 8g^2 + 17g - 14.