Need help with this question

Answer:
D
Step-by-step explanation:
the volume (V) of a pyramid is calculated as
V = [tex]\frac{1}{3}[/tex] Bh ( B is the area of the base and h the height )
here h = [tex]\frac{1}{2}[/tex] h
V = [tex]\frac{1}{3}[/tex] B × [tex]\frac{1}{2}[/tex] h = [tex]\frac{1}{6}[/tex] Bh → D