QuestionSuppose that $\ln 2=\mathrm{a}$ and $\ln 5=\mathrm{b}$. Use properties of logarithms to write the loga terms of $a$ and $b$.
In $\sqrt[7]{20}$ A. $\frac{2}{7}(a-b)$ B. $\frac{1}{7}(2 a+b)$ C. $\frac{1}{7}\left(a^{2}+b\right)$ D. $\frac{2}{7}(a+b)$