Answer
The answer is $\color{red}{g) 4t - 2t^7}$.
Work Step by Step
Remember that the degree of the polynomial is based on the term with the highest degree of the variable.
In this item, the binomial with degree 7, when arranged, is $4t - 2t^7$ or $- 2t^7 + 4t$. The answer is $\color{red}{g) 4t - 2t^7}$.