Please help, step by step, I need to show the work, I just don’t know how to do it

Answer:
B
Step-by-step explanation:
The volume (V) of a rectangular prism is
V = lbh
where l is the length, b the width and h the height
We are looking for 3 values that multiply together to give 10
Considering each of the options
A
100 × [tex]\frac{1}{2}[/tex] × [tex]\frac{1}{2}[/tex] = 25 ≠ 10
B
10 × [tex]\frac{1}{2}[/tex] × 2 = 10
C
5 × 2[tex]\frac{1}{2}[/tex] × 2[tex]\frac{1}{2}[/tex] = 31.25 ≠ 10
D
10 × 10 × [tex]\frac{1}{2}[/tex] = 50 ≠ 10
B is the only possible dimensions for the prism