The function y=x^2 is being shifted down 8 units. What function resembles the shift?

The parent function given is,
[tex]y=x^2[/tex]Then, the transformed function was then shifted down by 8 units.
[tex]y=x^2-8[/tex]Hence, the new function is
[tex]y=x^2-8\text{ \lparen Option B\rparen}[/tex]