Help with this question, please! I don't understand!!

Answer:
A
Step-by-step explanation:
The volume (V) of a pyramid is calculated using the formula
V = [tex]\frac{1}{3}[/tex] × area of base × height
note the height = 48 × 10 = 480 ( 48 storeys at 10 feet )
V = [tex]\frac{1}{3 }[/tex] × 571,536 × 480
= 91,445,760 ft³
[ 1 yd³ = 27 ft³ ], hence
V = [tex]\frac{91445760}{27}[/tex] = 3, 386, 880 yd³ → A