Simplify the Expression Involving Rational Exponents $\left(\frac{64}{729}\right)^{-2 / 3}$ A) $\frac{81}{16}$ B) $\frac{729}{64}$

Multiple Choice

Simplify the expression involving rational exponents.
- $\left(\frac{64}{729}\right) ^{-2 / 3}$

A) $\frac{81}{16}$

B) $\frac{729}{64}$

C) $\frac{16}{81}$

D) $\frac{64}{729}$