Answer: C. 168 m²
Explanation
The area of a rectangle (A) is given by:
[tex]A=l\cdot h[/tex]where l represents the length and h represents the height.
Then, in our case, l = 24m and h = 7m. By replacing the values and simplifying we get:
[tex]A=24m\cdot7m[/tex][tex]A=168m^2[/tex]