Divide the Fractions $\left( - \frac { 10 } { 9 } \right) \div \left( - \frac { 8 } { 7 } \right)$

Multiple Choice

Divide the fractions $\left( - \frac { 10 } { 9 } \right) \div \left( - \frac { 8 } { 7 } \right)$ and write the result in simplest form.

A) $\frac { 35 } { 36 }$
B) 1
C) -1
D) - $\frac { 35 } { 36 }$
E) $- \frac { 143 } { 72 }$