Solve the Equation for the Specified Variable $-6 k+a r=r-9 y$

Multiple Choice

Solve the equation for the specified variable. Use the distributive property to factor as necessary.
- $-6 k+a r=r-9 y$ for $r$

A) $r=\frac{-6 k+a}{1-9 y}$ or $r=\frac{6 k-a}{9 y-1}$

B) $r=\frac{6 k-9 y}{a-1}$ or $r=\frac{-6 k+9 y}{1-a}$

C) $r=\frac{a-1}{6 k-9 y}$ or $r=\frac{1-a}{-6 k+9 y}$

D) $r=\frac{-6 k+9 y}{a-1}$ or $r=\frac{6 k-9 y}{1-a}$