Which of the following pairs of $u\left(x\right)$ and $v\left(x\right)$ is correct for $u\left(v\right(x\left)\right)=(x^3-5{)}^4$?

• A. $u\left(x\right)=x^3-5$ and $v\left(x\right)=x^4$
• B. $u\left(x\right)=x^4$ and $v\left(x\right)=x^3-5$
• C. $u\left(x\right)=x^4-5$ and $v\left(x\right)=x^3$
• D. $u\left(x\right)=x^3$ and $v\left(x\right)=x^4-5$