Answer:
Second option.
Explanation:
You can use the formula for calculate the area of a trapezoid. This is:
![A_((trapezoid))=(h)/(2)(B+b)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/a78tind4y8wka4fv3bzgk6u74l0h37kdv8.png)
Where "B" is the larger base, "b" is the minor base and "h" is the height.
You can identify in the figure that:
![B=8units\\b=4units\\h=4units](https://img.qammunity.org/2020/formulas/mathematics/middle-school/h8ct5hi2lnk2gdmwlhmwl8z8hwnx3l7iww.png)
Then you can substitute values into the formula, getting that the area of the trapezoid is:
![A_((trapezoid))=(4units)/(2)(8units+4units)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/stb015hj8znett54kiabfn6ioo1w4m5pm2.png)
![A_((trapezoid))=24units^2](https://img.qammunity.org/2020/formulas/mathematics/middle-school/ok4vg7y6nqe95cftwtolrbxs11qszgr9xa.png)