Express the Following in Terms Of $u$ And $v$ , Where $u=\ln x$

Multiple Choice

Express the following in terms of $u$ and $v$ , where $u=\ln x$ and $v=\ln y$ . For example, $\ln x=3(\ln x) =3 u$ .
- $\ln \left(x^{7} \sqrt{y}\right)$

A) $7 u+v$
B) $7 \ln u+\frac{\ln v}{2}$
C) $7 v+\frac{u}{2}$
D) $7 u+\frac{v}{2}$