Which polynomial is factored completely?
Ag^5 - g
B4g^3 + 18g^2 + 20g
C24g^2 - 6g^4
D2g^2 + 5g + 4
Ag^5 - g
B4g^3 + 18g^2 + 20g
C24g^2 - 6g^4
D2g^2 + 5g + 4