it is given that,
the height of the pyramid is h = 3 yd
the length of the base is l = 8 yd
the width of the base is b = 8 yd
as we know that the formula for the volume of the pyramid is,
[tex]V=\frac{l\times b\times h}{3}[/tex]
put the values,
[tex]V=\frac{8\times8\times3}{3}[/tex][tex]V=64\text{ yd\textasciicircum{}3}[/tex]
thus, the volume of the pyramid is V = 64 yd^3
and the correct answer is Option D
