Write the Expression in Lowest Terms $\frac{a^{2}-7 a}{(a+6)(a-7)}$ A) $\frac{1}{a+6}$ B) $\frac{a-7}{a+6}$ C) $\frac{a^{2}}{a+6}$

Multiple Choice

Write the expression in lowest terms.
- $\frac{a^{2}-7 a}{(a+6) (a-7) }$

A) $\frac{1}{a+6}$
B) $\frac{a-7}{a+6}$
C) $\frac{a^{2}}{a+6}$
D) $\frac{a}{a+6}$